John F. Folan, MD
Internal Medicine Physician · Islandia, NY
John F. Folan, MD is an internal medicine physician with a practice address in Islandia, New York, and NPI 1780801605, issued on Apr 20, 2007. Check the license (New York 167755, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John F. Folan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 167755 NY
Self-reported in NPPES; status is on the state search - Practice location
- 3001 Express Dr N, Islandia, NY 11749
- Phone
- (631) 435-4358
- Enumerated
- Apr 20, 2007
- Record last updated
- Jan 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (631) 435-4583
- Medicaid ID
- 01083632 NY
- Medicare enrollment
- Enrolled (PECOS I20100831000856); accepts Medicare assignment
- Medical or professional school
- University Of Maryland School Of Medicine, 1985
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 3001 Express Dr N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Taranjit Arneja, M.D.Adult Medicine Physician1275064867
- Kevin Bonilla, MDObstetrics & Gynecology Physician1730686403
- Jessica Brimer, F.N.PFamily Nurse Practitioner1508298431
- Katherine Kaelin, NP-CFamily Nurse Practitioner1376143495
- Jennifer Renous, CNMMidwife1326794363
- Peter-John Ruiz, RPA-CPhysician Assistant1386668457
Verify John F. Folan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 167755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.5 times the Medicare Part D claims of the average internal medicine physician in 2024
11,200 Medicare Part D claims for 610 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 118 claims were for opioids.
Most prescribed
- Levothyroxine Sodium408 claims
- Atorvastatin Calcium392 claims
- Eliquis357 claims
- Potassium Chloride325 claims
- Amlodipine Besylate302 claims
- Pantoprazole Sodium296 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $746.58
35 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Chs Physician Partners PCMedford, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John F. Folan among 12,067 internal medicine physician records in New York
John F. Folan, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1985 · median 2002 among the 7,221 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in New York
There are 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Islandia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ingrid Cantave, M.D.Hauppauge, NY 117491154613321
- Craig Grobman, D.O.Melville, NY 117471639119621
- Eugene Heller, M.D.Melville, NY 117471548439961
- Alvin Holcomb, M.D.Melville, NY 117471447340237
- Shashi Jhamb, M.D.Islip, NY 117511346267218
- Devendra JhambIslip, NY 117511245308469
- Evelina Kahn-Kapp, MDMelville, NY 117471447214630
- Sonia Qadir, M.DMelville, NY 117471417973082
Common questions
What is John F. Folan, MD's NPI number?
John F. Folan, MD's National Provider Identifier (NPI) is 1780801605, issued on Apr 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John F. Folan, MD located?
The NPPES record lists a practice address at 3001 Express Dr N, Islandia, NY, 11749. Phone: (631) 435-4358. Providers update this record themselves, so call before visiting.
How can I verify John F. Folan, MD's license?
NPPES lists New York license number 167755, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John F. Folan, MD prescribe under Medicare Part D?
In 2024, John F. Folan, MD had 11,200 Medicare Part D claims for 610 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.