Horatio Holzer, M.D.
Hospitalist Physician · New York, NY
Horatio Holzer, M.D. is a hospitalist physician with a practice address in New York, New York, and NPI 1790050110, issued on Mar 19, 2012. Check the license (New York 278882, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Horatio Holzer
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 278882 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1 Gustave L Levy PL, New York, NY 10029
- Phone
- (212) 241-1653
- Enumerated
- Mar 19, 2012
- Record last updated
- Apr 12, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (212) 289-6393
- Medicare enrollment
- Enrolled (PECOS I20160404001440); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 2,067 in New York → Look up another NPI →
Also registered at 1 Gustave L Levy PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Grant AbrahamsonStudent in an Organized Health Care Education/Training Program1194512590
Verify Horatio Holzer 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 278882Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average hospitalist physician in 2024
115 Medicare Part D claims for 32 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% 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.
Bills Medicare through one group practice
- Icahn School OF Medicine AT Mount SinaiNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Horatio Holzer among 2,067 hospitalist physician records in New York
Horatio Holzer, M.D. is one of 2,067 hospitalist physician records with a practice address in New York. 93% 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 36% of them.
- NPI issued2012 · 36% of these records are older, 60% newer
- In a Medicare fileYes · 93% of these records are
- In the CMS Doctors and Clinicians fileYes · 83% of these records are
- Graduated2012 · median 2013 among the 1,716 with a school on file
- Record last updated2016 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in New York
There are 2,067 hospitalist physician records in New York.
All 2,067 in New York → Every provider in New York → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Ramin Asgary, MDNew York, NY 100291235353053
- Imuetinyan Asuen, MDNew York, NY 100291316968530
- Andrew Dunn, MDNew York, NY 100291326078833
- Erin Gabriel, M.D.New York, NY 100291669658290
- Brian Markoff, MDNew York, NY 100291083646111
- Yuko Merchant, MDNew York, NY 100291134304108
- Vinh-Tung NguyenNew York, NY 100291497927750
- Peter Rachlin, MDNew York, NY 100291528264132
Common questions
What is Horatio Holzer, M.D.'s NPI number?
Horatio Holzer, M.D.'s National Provider Identifier (NPI) is 1790050110, issued on Mar 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Horatio Holzer, M.D. located?
The NPPES record lists a practice address at 1 Gustave L Levy PL, New York, NY, 10029. Phone: (212) 241-1653. Providers update this record themselves, so call before visiting.
How can I verify Horatio Holzer, M.D.'s license?
NPPES lists New York license number 278882, 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 Horatio Holzer, M.D. prescribe under Medicare Part D?
In 2024, Horatio Holzer, M.D. had 115 Medicare Part D claims for 32 beneficiaries; the average among hospitalist physician prescribers was 521. 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.