Michael Franklin Chen-Illamos, MD
Family Medicine Physician · Ossining, NY
Michael Franklin Chen-Illamos, MD is a family medicine physician with a practice address in Ossining, New York, and NPI 1205274727, issued on Jun 6, 2013. Check the license (New York 00286239, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Michael Franklin Chen-Illamos
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 00286239 NY
LP02873 RI
Self-reported in NPPES; status is on the state search - Practice location
- 165 Main St, Ossining, NY 10562
- Phone
- (914) 941-1263
- Enumerated
- Jun 6, 2013
- Record last updated
- Jan 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (914) 941-0993
- Medicaid ID
- 04547971 NY
- Medicare enrollment
- Enrolled (PECOS I20160930001603); accepts Medicare assignment
- Medical or professional school
- Warren Alpert Medical School Of Brown University, 2005
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Also registered at 165 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Serena Allen, C-PNPPediatric Nurse Practitioner1326231721
- Nicole Arraiano, PA-CPhysician Assistant1619977576
- Mariel Bazil, LCSWClinical Social Worker1487093407
- Janet Bozzone, DMDDentist1689737231
- Erika Brodkin, DDSPediatric Dentistry1417019845
- Alicia Christian, CPNP-PCPediatrics Physician1801428032
Verify Michael Franklin Chen-Illamos 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 00286239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average family medicine physician in 2024
2,001 Medicare Part D claims for 168 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium132 claims
- Amlodipine Besylate123 claims
- Rosuvastatin Calcium70 claims
- Losartan Potassium65 claims
- Metformin Hcl Er52 claims
- Famotidine49 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: $172.74
4 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. The 55,478 providers of this specialty with any payment received $902.55 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
- Open Door Family Medical Center IncOssining, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Franklin Chen-Illamos among 6,417 family medicine physician records in New York
Michael Franklin Chen-Illamos, MD is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 65% of them.
- NPI issued2013 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2005 · median 2007 among the 4,188 with a school on file
- Record last updated2017 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 family medicine physician records list a practice address in Ossining
They are 7 of the 403 NPPES records with a practice address in Ossining, and 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in Ossining → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Monique Forsea, M.D.Ossining, NY 105621245526664
- Michael McCormick, M.DOssining, NY 105621538115415
- Leslie Plachta, MD, MPHOssining, NY 105621285719302
- Lucy Rovito, MDOssining, NY 105621700948106
- Leneika Satchell, DOOssining, NY 105621366903247
- Alice Teich, M.D.Ossining, NY 105621376826818
- Wendy Angelo, M.D.Peekskill, NY 105661528061983
- Tyler Fuller, MDPeekskill, NY 105661992455885
Common questions
What is Michael Franklin Chen-Illamos, MD's NPI number?
Michael Franklin Chen-Illamos, MD's National Provider Identifier (NPI) is 1205274727, issued on Jun 6, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Michael Franklin Chen-Illamos, MD located?
The NPPES record lists a practice address at 165 Main St, Ossining, NY, 10562. Phone: (914) 941-1263. Providers update this record themselves, so call before visiting.
How can I verify Michael Franklin Chen-Illamos, MD's license?
NPPES lists New York license number 00286239, 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 Michael Franklin Chen-Illamos, MD prescribe under Medicare Part D?
In 2024, Michael Franklin Chen-Illamos, MD had 2,001 Medicare Part D claims for 168 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.