Cynthia Ko, M.D.
Internal Medicine Physician · New York, NY
Cynthia Ko, M.D. is an internal medicine physician with a practice address in New York, New York, and NPI 1649529256, issued on Aug 29, 2012. Check the license (New York 274283, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Cynthia Ko
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 274283 NY
Self-reported in NPPES; status is on the state search - Practice location
- 401 First Ave., Apt. 11C, New York, NY 10010
- Phone
- (718) 915-2334
- Enumerated
- Aug 29, 2012
- Record last updated
- Aug 16, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150923002963); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Verify Cynthia Ko 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 274283Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
315 Medicare Part D claims for 102 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Albuterol Sulfate Hfa36 claims
- Famotidine23 claims
- Amlodipine Besylate22 claims
- Atorvastatin Calcium20 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: $910.93
36 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. 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
- Interfaith Professional Physician Services PCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cynthia Ko among 12,067 internal medicine physician records in New York
Cynthia Ko, M.D. 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 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2002 among the 7,221 with a school on file
- Record last updated2017 · 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).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Rosa Cipollone, M.D.New York, NY 100101780635656
- Marjet Cordon, MDNew York, NY 100101508820788
- Hilary Gleekman-Greenberg, MDNew York, NY 100101619946464
- Henry Hom, M.D.New York, NY 100101427002278
- Frank Lipman, M.D.New York, NY 100101982602942
- Jeffrey LorinNew York, NY 100101699721464
- Alina Mastan, M.D.New York, NY 100101285620245
- Gayle McDermott, MDNew York, NY 100101336112424
Common questions
What is Cynthia Ko, M.D.'s NPI number?
Cynthia Ko, M.D.'s National Provider Identifier (NPI) is 1649529256, issued on Aug 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Cynthia Ko, M.D. located?
The NPPES record lists a practice address at 401 First Ave., Apt. 11C, New York, NY, 10010. Phone: (718) 915-2334. Providers update this record themselves, so call before visiting.
How can I verify Cynthia Ko, M.D.'s license?
NPPES lists New York license number 274283, 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 Cynthia Ko, M.D. prescribe under Medicare Part D?
In 2024, Cynthia Ko, M.D. had 315 Medicare Part D claims for 102 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.