Donald F. Hammer, MD
Cardiovascular Disease Physician · Cleveland, OH
Donald F. Hammer, MD is a cardiovascular disease physician with a practice address in Cleveland, Ohio, and NPI 1538255096, issued on Oct 4, 2006. Check the license (Ohio 35043941H, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Donald F. Hammer
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 35043941H OH
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Euclid Ave, Cleveland, OH 44195
- Phone
- (800) 223-2273
- Enumerated
- Oct 4, 2006
- Record last updated
- Feb 6, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 0705053 OH
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,009 in Ohio → Look up another NPI →
Also registered at 9500 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cassandra Abbatemarco, CNPPsychiatric/Mental Health Nurse Practitioner1417645144
- Walid Abboud, MDInternal Medicine Physician1245295559
Verify Donald F. Hammer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35043941HCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,014 Medicare Part D claims for 327 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D.
Most prescribed
- Metoprolol Succinate227 claims
- Atorvastatin Calcium170 claims
- Rosuvastatin Calcium163 claims
- Eliquis157 claims
- Entresto96 claims
- Ezetimibe79 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.
Donald F. Hammer among 1,009 cardiovascular disease physician records in Ohio
Donald F. Hammer, MD is one of 1,009 cardiovascular disease physician records with a practice address in Ohio. 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 2006, is newer than 21% of them.
- NPI issued2006 · 21% of these records are older, 40% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2008 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Ohio
There are 1,009 cardiovascular disease physician records in Ohio.
All 1,009 in Ohio → Every provider in Cleveland → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Joseph Cacchione, MDCleveland, OH 441951023096732
- James Carter, MDCleveland, OH 441951346230018
- Albert ChanCleveland, OH 441951386641744
- David Hall, MDCleveland, OH 441951831180942
- Robert Hobbs, M.D.Cleveland, OH 441951326001249
- Patrick Hughes, MDCleveland, OH 441951013995281
- Monica Khot, M.D.Cleveland, OH 441951912978446
- Umesh Khot, M.D.Cleveland, OH 441951730150269
Common questions
What is Donald F. Hammer, MD's NPI number?
Donald F. Hammer, MD's National Provider Identifier (NPI) is 1538255096, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Donald F. Hammer, MD located?
The NPPES record lists a practice address at 9500 Euclid Ave, Cleveland, OH, 44195. Phone: (800) 223-2273. Providers update this record themselves, so call before visiting.
How can I verify Donald F. Hammer, MD's license?
NPPES lists Ohio license number 35043941H, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Donald F. Hammer, MD prescribe under Medicare Part D?
In 2024, Donald F. Hammer, MD had 2,014 Medicare Part D claims for 327 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.