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Internal Medicine Providers in Garden City, NY

Browse 48 Internal Medicine providers listed in NPPES with a practice address in Garden City, New York.

48 Healthcare Providers

How Garden City compares with the U.S.

Garden City has 209 clinicians in Internal Medicine per 100,000 residents, 4.7 times the U.S. rate of 44.

That is 48 active clinicians in Internal Medicine with a practice address in Garden City, for a population of 22,941.

The New York rate is 61 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

100% of clinicians in Internal Medicine in Garden City listed in the CMS Medicare file (31 of 31) accept Medicare assignment. That is higher than the New York share of 91%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

61% of clinicians in Internal Medicine in Garden City listed in the CMS Medicare file (19 of 31) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher than the New York share of 35%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Garden City, NY

Source: CMS PECOS
PECOS Enrolled Specialists 35 In Garden City, NY
Part B Lab & Imaging Eligible 35 Diagnostic Referrals
DME Ordering Eligible 37 Durable Medical Equipment
Home Health Agency Referrals 35 HHA Ordering Eligible
Showing 1โ€“20 of 48 providers
With recent CMS data first, then Aโ€“Z

Dr. Gregory Ajemian , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
212 Nassau Blvd, Garden City, NY 115301267
Phone: 5166372265
NPI Identifier 1962407627
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Dr. Charles A Annunziato , MD

Internal Medicine

Active NPI Status
1000 Franklin Ave, Suite 300, Garden City, NY 115302926
Phone: 5162486868
NPI Identifier 1700885316
View Full Profile

Dr. Francisca Ariola-Hopkins , MD

Internal Medicine

Active NPI Status
229 7th St, Suite 307, Garden City, NY 115305766
Phone: 5164818877
NPI Identifier 1821080698
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Dr. Merces Assumpcao-Morales , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1000 Franklin Ave, Suite 300, Garden City, NY 115302926
Phone: 5162486868
NPI Identifier 1508135666
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Dr. Diane Biele , MD

Internal Medicine

Active NPI Status
901 Stewart Avenue, Suite 275, Garden City, NY 11530
Phone: 5168771518
NPI Identifier 1437355849
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Dr. Michael F Carl , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1000 Franklin Ave, Suite300, Garden City, NY 115302926
Phone: 5162486868
NPI Identifier 1164413241
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Dr. Xia Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
877 Stewart Ave Ste 25, Garden City, NY 115304803
Phone: 5162220404
NPI Identifier 1386931681
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Dr. Miguel Cima , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
877 Stewart Ave, Suite 28, Garden City, NY 115304803
Phone: 5162221000
NPI Identifier 1053374868
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Dr. Mario Fernando Costantino , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
233 7th St, 101, Garden City, NY 115305747
Phone: 5167425344
NPI Identifier 1336398700
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Dr. Dayenny Dejesus Romero , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1111 Franklin Ave, Garden City, NY 115301617
Phone: 5162228600
NPI Identifier 1295471878
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Dr. Mairaj Ud Din , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
800 Axinn Ave, Garden City, NY 115302139
Phone: 6466802894
NPI Identifier 1609804319
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Dr. Manuel Licitra Fajardo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
100 Somerset Ave, Garden City, Garden City, NY 115301231
Phone: 5167414898
NPI Identifier 1831461417
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Dr. Vincent J Geraci , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Stewart Ave, Garden City, NY 115304816
Phone: 5162228666
NPI Identifier 1396702262
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Dr. Ekaterini Hatzis , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
975 Stewart Ave, Garden City, NY 115304816
Phone: 5162228600
NPI Identifier 1184852196
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Dr. Lainie M Hazan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
975 Stewart Ave, Garden City, NY 115304816
Phone: 5162228667
NPI Identifier 1437182821
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Dr. Robert Hirschberg , DO

Internal Medicine

Active NPI Status
520 Franklin Avenue, Suite 212, Garden City, NY 11530
Phone: 5168736269
NPI Identifier 1831108356
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Dr. Heather Hussey , MD

Internal Medicine

Active NPI Status
975 Stewart Ave, Garden City, NY 115304816
Phone: 5162228637
NPI Identifier 1972864809
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Dr. Renee Lefland , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
877 Stewart Ave, Suite 25, Garden City, NY 115304803
Phone: 5162220404
NPI Identifier 1861573768
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Dr. Lisa Joan Lehnert , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
975 Stewart Ave, Garden City, NY 115304816
Phone: 5165652060
NPI Identifier 1528035870
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Dr. Jeffrey A Loewy , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
975 Stewart Ave, Garden City, NY 115304816
Phone: 5162228868
NPI Identifier 1407814528
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Frequently Asked Questions about Internal Medicine in Garden City

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the New York licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.