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Internal Medicine Physicians accepting Medicare in Lake Forest, IL

87 in-network Internal Medicine Physicians with 2 plans in Lake Forest, IL

87 Providers
68 Specialties
Medicare’s Illinois network spans 69,230 providers. Lake Forest accounts for 2% of that. The largest Medicare footprint in Illinois is in Chicago (18,457 providers).
Showing 6180 of 87 providers·
AP
Dr. Anthony Pensa, MD
Internal Medicine
Northwestern Medical Faculty Foundation
675 N St Clair, Lake Forest, IL 60611· 27.6 mi away
6 years experience · Northwestern University Feinberg Medical...
Medicare✓ Medicare5 plans
NT
Dr. Nicole Tomczuk, DO
Internal Medicine
Northwestern Medical Faculty Foundation
870 N Milwaukee Ave, Lake Forest, IL 60061· 4.3 mi away
4 years experience · Other
Medicare✓ Medicare6 plans
JD
Dr. Jennifer Dimond, MD
Internal Medicine
Endeavor Health Medical Group
915 S Waukegan Rd, Lake Forest, IL 60045· 2.0 mi away
7 years experience · Other
Medicare✓ Medicare✓ Telehealth4 plans
DW
Dr. Dana Wood, MD
Internal Medicine
Northwestern Medical Faculty Foundation
870 N Milwaukee Ave, Lake Forest, IL 60061· 4.3 mi away
26 years experience · University Of Michigan Medical School
Medicare✓ Medicare✓ Telehealth9 plans
JB
Dr. Jennifer Bussell, MD
Internal Medicine
Northwestern Medical Faculty Foundation
633 N Saint Clair St, Lake Forest, IL 60611· 27.6 mi away
31 years experience · University Of Illinois College Of Med (C...
Medicare✓ Medicare✓ Telehealth9 plans
RC
Dr. Regan Christopoulos, MD
Internal Medicine
Endeavor Health Medical Group
777 Park Ave W, Lake Forest, IL 60035· 5.2 mi away
26 years experience · Louisiana State University School Of Med...
Medicare✓ Medicare✓ Telehealth8 plans
NZ
Dr. Ned Zallik
Internal Medicine
Northwestern Medical Faculty Foundation
870 N Milwaukee Ave, Lake Forest, IL 60061· 4.3 mi away
44 years experience · Other
Medicare✓ Medicare✓ Telehealth2 plans
CK
Dr. Christopher Kapp, MD
Internal Medicine
Northwestern Medical Faculty Foundation
675 N Saint Clair St, Lake Forest, IL 60611· 27.6 mi away
13 years experience · Indiana University School Of Medicine
Medicare✓ Medicare✓ Telehealth10 plans
MZ
Dr. Melissa Zimmerman, MD
Internal Medicine
Northwestern Medical Faculty Foundation
675 N St Clair, Lake Forest, IL 60611· 27.6 mi away
10 years experience · Ohio State University College Of Medicin...
Medicare✓ Medicare✓ Telehealth9 plans
SH
Dr. Syed Haider, MD
Internal Medicine
Northwestern Medical Faculty Foundation
675 N St Clair, Lake Forest, IL 60611· 27.6 mi away
34 years experience · Other
Medicare✓ Medicare✓ Telehealth9 plans

About Medicare Coverage in Lake Forest

Medicare operates 2 distinct networks in Lake Forest, IL, with a combined in-network roster of 1,284 doctors across 68 medical specialties. Among the five largest insurers we track in Lake Forest, Medicare ranks #2 by provider count, the leader is Aetna with 1,320 in-network doctors. Use this page to confirm a specific provider is in-network, understand which Medicare networks have the widest reach in Lake Forest, and compare coverage against other major insurers before scheduling care.

Medicare publishes its Lake Forest directory at the network level rather than the consumer-plan level. The labels on each row below (for example Original Medicare (Accepts Assignment)) are network identifiers, not the plan names printed on your member ID card. Your specific plan typically maps to one of these networks, but the mapping isn’t exposed in the federal filing. Match the doctor’s name first, then call the office with your member ID to confirm your plan is accepted.

Data is sourced from the federally-mandated CMS Transparency in Coverage filings that every insurer must publish monthly. Last refreshed May 29, 2026. Networks change between filings, so even when a doctor appears here we recommend calling their office with your member ID to confirm current network status before your visit.

Medicare Networks for Internal Medicine Physicians in Lake Forest

Network-level provider counts for internal medicine physicians accepting Medicare in Lake Forest. Each row is a network in Medicare’s federal filing. your specific plan maps to one of these.

Plan / NetworkTypeDoctors

Original Medicare (Accepts Assignment)

government

86

Original Medicare (May Accept Assignment)

government

1

Physician Experience in Medicare’s Lake Forest Network

Years since medical school graduation is a reasonable proxy for experience, though it doesn’t capture fellowship training, subspecialty certifications, or years spent in specific clinical settings. For Medicare’s Lake Forest network the breakdown below gives a quick sense of whether you’re picking from a predominantly early-career roster or one weighted toward veteran practitioners.

A network heavy on early-career doctors (0–5 years) often means lower wait times for new patients and exposure to the latest training, while veteran providers (30+ years) typically bring deeper pattern recognition for unusual presentations. A balanced distribution. roughly one-quarter in each bucket. is a healthy signal that the insurer has depth at every career stage, not just new graduates filling out its directory.

Median16years of experience
7,809 Medicare providers in Lake Forest with graduation-year data
Early career0–5 yrs
964providers
12%
Established6–15 yrs
2,843providers
36%
Senior16–30 yrs
2,703providers
35%
Veteran30+ yrs
1,299providers
17%

Telehealth Coverage in Lake Forest

450 of 1,284 Medicare in-network providers (35%) offer telehealth visits in Lake Forest. Video appointments are typically covered for follow-ups, medication refills and adjustments, mental-health sessions, dermatology triage, and low-acuity primary care.

Availability and reimbursement still vary by state regulation and specific plan. Psychiatry, behavioral-health, and primary-care telehealth is near-universal at this point; procedural specialties (cardiology, orthopedics) typically offer video visits for pre-op consults and post-op follow-up but not initial diagnostic visits. Call the office with your Medicare member ID to confirm your plan covers the visit type you need.

Top specialties offering telehealth in Lake Forest

Top Hospitals Serving Medicare Patients in Lake Forest

Hospitals with the most Medicare-network physicians practicing there. Large affiliation counts indicate that Medicare has a durable relationship with the facility, which typically means smoother prior-authorizations for admissions, lab work, and follow-up care coordinated under one roof.

Hospital coverage is a separate contract from physician coverage. your Medicare plan may cover a doctor who admits at Hospital X but classify the hospital itself as out-of-network, leaving you with a surprise facility bill. Before scheduling anything inpatient or procedural, call both the doctor’s office and the hospital billing line with your member ID to confirm both sides are in-network for the specific plan you hold.

Coverage Compared in Lake Forest

Side-by-side provider counts for the five largest commercial and government insurers tracked in Lake Forest. These numbers show raw network breadth. they don’t adjust for quality, specialty mix, or your specific plan’s tier structure, but they’re a useful first filter when choosing a carrier at open enrollment.

If Medicare’s provider count looks limited for your needs, the alternatives below may fit better. Click any row to open that insurer’s Lake Forest provider list with the same filters, plan breakdown, and hospital affiliations that you’re seeing here.

Nearby Cities with Medicare Coverage

Cities closest to Lake Forest where Medicare has an in-network provider base of meaningful size. Useful if you’re willing to drive a short distance for a hard-to-find specialist, have two offices to choose between, or are planning a move inside the region.

The mileage figures are straight-line distances computed from average practice-address coordinates, not drive-time. Counts reflect each nearby city’s Medicare network size. a small count doesn’t mean no coverage, just that your in-Lake Forest options are likely more plentiful.

Frequently Asked Questions

Common questions about Medicare coverage in Lake Forest

How do I find an Medicare in-network doctor in Lake Forest, IL?

Medicare has 1,284 in-network providers across 68 medical specialties in Lake Forest. This list is compiled from federally-mandated CMS Transparency in Coverage filings, last verified May 29, 2026. Filter by specialty, plan type, gender, telehealth or experience above to narrow your search, then click any provider for full credentials and contact details. Always confirm coverage with your specific plan before scheduling.

Which hospitals in Lake Forest accept Medicare?

Hospitals where Medicare doctors most commonly practice in Lake Forest include NORTHWESTERN LAKE FOREST HOSPITAL, NORTHWESTERN MEDICINE CENTRAL DUPAGE HOSPITAL, NORTHWESTERN MEMORIAL HOSPITAL, NORTHWESTERN MEDICINE MCHENRY. This is inferred from physician affiliations rather than direct insurer-hospital contracts, so confirm hospital network status separately with both your Medicare plan and the hospital's billing department before scheduling any inpatient or surgical procedure. Even when a doctor is in-network, the hospital where they admit may not be.

Which medical specialties have the most Medicare providers in Lake Forest?

Medicare's Lake Forest network is largest in Nurse Practitioner (269), Physician Assistant (212), Internal Medicine (87). Primary care, behavioral health, and physical therapy tend to dominate insurer networks because high patient volumes drive deeper provider contracts. Surgical sub-specialties typically have narrower networks. Click any specialty in the section above to see a filtered list of those in-network providers.

How does Medicare compare to other insurers in Lake Forest?

Medicare ranks #2 of 5 major insurers tracked in Lake Forest by provider count, with 1,284 doctors. Aetna leads at 1,320 providers. Larger network size means more provider choice but doesn't guarantee that your specific doctor is in-network with any insurer. The Coverage Compared section above shows side-by-side counts for the top five carriers in Lake Forest.

Why don't I see specific Medicare plan names like Bronze or Silver?

Medicare files its Lake Forest provider directory at the network level rather than by consumer plan name. The labels above (such as Original Medicare (Accepts Assignment)) are the network identifiers Medicare uses internally. Your specific plan, whether commercial group, Medicare, or Medicaid, maps to one of these networks but the federal filing format doesn't expose which plan goes with which network. To verify your exact plan covers a specific doctor, call the provider with your member ID handy.

How do I verify a doctor is in-network with Medicare?

Three steps: first match the doctor's name against this list, second call the provider's office with your member ID to confirm they currently accept your specific Medicare plan, and third check Medicare's own member portal for the most authoritative real-time status. Networks change between monthly federal filings; our data was last refreshed May 29, 2026.

What if my doctor isn't listed here?

This list reflects Medicare's submitted network data as of the last federal filing on May 29, 2026. Doctors join and leave networks between filings, so a current in-network provider may be missing if they joined recently. Call the doctor's office to ask whether they currently accept Medicare, then check Medicare's own member portal for confirmation.

When was this Medicare data last updated?

The Medicare Lake Forest provider list was last refreshed May 29, 2026. Doctor and network data come from the federally-mandated CMS Transparency in Coverage filings that every insurer must publish monthly. Refresh cadence: monthly for provider data, annually for marketplace and Medicare plans.

Related healthcare resources

Patient resources for Lake Forest Medicare members.

Data freshness

Last verified May 29, 2026 · Source: CMS Transparency in Coverage federal filings · Refresh cadence: monthly