Mark Howard Hittman, MD
Internal Medicine Physician · Cortlandt Manor, NY
Mark Howard Hittman, MD is an internal medicine physician with a practice address in Cortlandt Manor, New York, and NPI 1255337267, issued on Jun 23, 2005. Check the license (New York 150322, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Howard Hittman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 150322 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1989 Crompond RD, Cortlandt Manor, NY 10567
- Phone
- (914) 737-5315
- Enumerated
- Jun 23, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (914) 737-7643
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Verify Mark Howard Hittman 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 150322Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
21 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Mark Howard Hittman among 12,067 internal medicine physician records in New York
Mark Howard Hittman, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 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).
15 internal medicine physician records list a practice address in Cortlandt Manor
They are 15 of the 456 NPPES records with a practice address in Cortlandt Manor, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Cortlandt Manor → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nadia Amin, M.D.Cortlandt Manor, NY 105671962693937
- William Assante, MDCortlandt Manor, NY 105671629179379
- Kola Dushaj, MDCortlandt Manor, NY 105671114264595
- Maurice Johnson, M.D.Cortlandt Manor, NY 105671689751497
- Helena Kurian, M.D.Cortlandt Manor, NY 105671457580144
- Alphonso Linley, M.D.Cortlandt Manor, NY 105671750722500
- Neritan ManiCortlandt Manor, NY 105671376511105
- Patrick Prepetit, M.D.Cortlandt Manor, NY 105671801129481
Common questions
What is Mark Howard Hittman, MD's NPI number?
Mark Howard Hittman, MD's National Provider Identifier (NPI) is 1255337267, issued on Jun 23, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Howard Hittman, MD located?
The NPPES record lists a practice address at 1989 Crompond RD, Cortlandt Manor, NY, 10567. Phone: (914) 737-5315. Providers update this record themselves, so call before visiting.
How can I verify Mark Howard Hittman, MD's license?
NPPES lists New York license number 150322, 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 Mark Howard Hittman, MD prescribe under Medicare Part D?
In 2024, Mark Howard Hittman, MD had 21 Medicare Part D claims; 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.