Marshall Jay Glesby, M.D.
Infectious Disease Physician · New York, NY
Marshall Jay Glesby, M.D. is an infectious disease physician with a practice address in New York, New York, and NPI 1396891644, issued on Jan 26, 2007. Check the license (New York 209163, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Marshall Jay Glesby
- Credential
- M.D.
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- 209163 NY
Self-reported in NPPES; status is on the state search - Practice location
- 525 E 68TH St, New York, NY 10021
- Phone
- (212) 746-7134
- Enumerated
- Jan 26, 2007
- Record last updated
- Jul 6, 2023
- Fax
- (212) 746-8852
- Medicare enrollment
- Enrolled (PECOS I20040316000761); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 970 in New York → Look up another NPI →
Also registered at 525 E 68TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sharon Abramovitz, M.D,Anesthesiology Physician1811907173
- Regina Alegre-Gomez, CRNACertified Registered Nurse Anesthetist1164584108
- Gemma Alquero, P.T.Physical Therapist1760556484
- Jeanette Aponte, D.P.TPhysical Therapist1073730388
- Alice Arden, ANPAdult Health Nurse Practitioner1609996206
Verify Marshall Jay Glesby 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 209163Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average infectious disease physician in 2024
598 Medicare Part D claims for 23 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims. 29 claims were for opioids.
Most prescribed
- Tivicay62 claims
- Atorvastatin Calcium37 claims
- Amlodipine Besylate32 claims
- Descovy31 claims
- Lisinopril28 claims
- Biktarvy25 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Weill Medical College OF CornellNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marshall Jay Glesby among 970 infectious disease physician records in New York
Marshall Jay Glesby, M.D. is one of 970 infectious disease physician records with a practice address in New York. 78% 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 46% of them.
- NPI issued2007 · 46% of these records are older, 41% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1989 · median 2002 among the 624 with a school on file
- Record last updated2023 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in New York
There are 970 infectious disease physician records in New York.
All 970 in New York → Every provider in New York → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Marina Caskey, M.D.New York, NY 100211477501989
- James Gettler, MDNew York, NY 100211659317238
- Michael Glickman, MDNew York, NY 100211366413155
- Barry Hartman, MDNew York, NY 100211053313940
- Michael Henry, M.D.New York, NY 100211710088810
- Shari Midoneck, MDNew York, NY 100211811085186
- Andy Miller, MDNew York, NY 100211922049683
- Henry MurrayNew York, NY 100211942240999
Common questions
What is Marshall Jay Glesby, M.D.'s NPI number?
Marshall Jay Glesby, M.D.'s National Provider Identifier (NPI) is 1396891644, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Marshall Jay Glesby, M.D. located?
The NPPES record lists a practice address at 525 E 68TH St, New York, NY, 10021. Phone: (212) 746-7134. Providers update this record themselves, so call before visiting.
How can I verify Marshall Jay Glesby, M.D.'s license?
NPPES lists New York license number 209163, 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 Marshall Jay Glesby, M.D. prescribe under Medicare Part D?
In 2024, Marshall Jay Glesby, M.D. had 598 Medicare Part D claims for 23 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.
What is Marshall Jay Glesby, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.