Charles Whitman Gillihan, MD
Internal Medicine Physician · New York, NY
Charles Whitman Gillihan, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1215490370, issued on Apr 7, 2019. Check the license (New York 317112, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Charles Whitman Gillihan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 317112 NY
Self-reported in NPPES; status is on the state search - Practice location
- 227 Madison St, New York, NY 10002
- Phone
- (212) 238-7444
- Enumerated
- Apr 7, 2019
- Record last updated
- Jul 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20220819001971); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 227 Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Charles Whitman Gillihan 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 317112Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average internal medicine physician in 2024
4,683 Medicare Part D claims for 341 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium353 claims
- Rosuvastatin Calcium160 claims
- Amlodipine Besylate154 claims
- Jardiance148 claims
- Diclofenac Sodium121 claims
- Famotidine121 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.
Bills Medicare through one group practice
- New York City Health And Hospitals CorporationBronx, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Whitman Gillihan among 12,067 internal medicine physician records in New York
Charles Whitman Gillihan, 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 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2002 among the 7,221 with a school on file
- Record last updated2022 · 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 →
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Common questions
What is Charles Whitman Gillihan, MD's NPI number?
Charles Whitman Gillihan, MD's National Provider Identifier (NPI) is 1215490370, issued on Apr 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Charles Whitman Gillihan, MD located?
The NPPES record lists a practice address at 227 Madison St, New York, NY, 10002. Phone: (212) 238-7444. Providers update this record themselves, so call before visiting.
How can I verify Charles Whitman Gillihan, MD's license?
NPPES lists New York license number 317112, 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 Charles Whitman Gillihan, MD prescribe under Medicare Part D?
In 2024, Charles Whitman Gillihan, MD had 4,683 Medicare Part D claims for 341 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.