Eileen K. Hammar, M.D.
Family Medicine Physician · Westerville, OH
Eileen K. Hammar, M.D. is a family medicine physician with a practice address in Westerville, Ohio, and NPI 1336126549, issued on Dec 29, 2005. Check the license (Ohio 35-08-1239, as entered in NPPES) on the State Medical Board of Ohio; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Eileen K. Hammar
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35-08-1239 OH
Self-reported in NPPES; status is on the state search - Practice location
- 291 W Schrock RD, Westerville, OH 43081
- Phone
- (614) 901-2273
- Enumerated
- Dec 29, 2005
- Record last updated
- Jun 25, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (614) 901-3140
- Medicaid ID
- 2342478 OH
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,606 in Ohio → Look up another NPI →
Verify Eileen K. Hammar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-08-1239Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Eileen K. Hammar among 5,606 family medicine physician records in Ohio
Eileen K. Hammar, M.D. is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileNo · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 family medicine physician records list a practice address in Westerville
They are 107 of the 3,300 NPPES records with a practice address in Westerville, and 5,606 family medicine physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,606 in Ohio → Every provider in Westerville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christine AdamcakWesterville, OH 430811376580191
- Sameer Ankolkar, MDWesterville, OH 430811417924119
- Andrew Eilerman, DOWesterville, OH 430811962476457
- Timothy Graham, MDWesterville, OH 430811609863661
- David Hill, M.D.Westerville, OH 430811548209018
- Heber Hostetter, D.O.Westerville, OH 430811003819640
- Carol Hostetter, D.O.Westerville, OH 430811386649978
- Laurel Marques, MDColumbus, OH 430811508864604
Common questions
What is Eileen K. Hammar, M.D.'s NPI number?
Eileen K. Hammar, M.D.'s National Provider Identifier (NPI) is 1336126549, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eileen K. Hammar, M.D. located?
The NPPES record lists a practice address at 291 W Schrock RD, Westerville, OH, 43081. Phone: (614) 901-2273. Providers update this record themselves, so call before visiting.
How can I verify Eileen K. Hammar, M.D.'s license?
NPPES lists Ohio license number 35-08-1239, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.