Ruth Allendoerfer-Fernandez, M.D.
Internal Medicine Physician · Cincinnati, OH
Ruth Allendoerfer-Fernandez, M.D. is an internal medicine physician with a practice address in Cincinnati, Ohio, and NPI 1013964246, issued on May 31, 2006. Check the license (Ohio 35080808A, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Ruth Allendoerfer-Fernandez
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35080808A OH
Self-reported in NPPES; status is on the state search - Practice location
- 4320 Bridgetown RD, Cincinnati, OH 45211
- Phone
- (513) 574-4550
- Enumerated
- May 31, 2006
- Record last updated
- Jul 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid IDs
- 64061625 KY
2325415 OH - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 4320 Bridgetown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ruth Allendoerfer-Fernandez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35080808ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
210 Medicare Part D claims for 26 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium25 claims
- Fluoxetine Hcl24 claims
- Gabapentin22 claims
- Furosemide17 claims
- Bupropion Hcl16 claims
- Myrbetriq13 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.
Ruth Allendoerfer-Fernandez among 5,277 internal medicine physician records in Ohio
Ruth Allendoerfer-Fernandez, M.D. is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 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 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
566 internal medicine physician records list a practice address in Cincinnati
They are 566 of the 31,362 NPPES records with a practice address in Cincinnati, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Cincinnati → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Terrence Carrigan, MDCincinnati, OH 452111285662411
- Smitha Chandra, MDCincinnati, OH 452111891016119
- Michael Cholera, DOCincinnati, OH 452111699844704
- Peter Kambelos, M.D.Cincinnati, OH 452111255367512
- Suzanne Lekson, M.D.Cincinnati, OH 452111942242813
- Houssam Marwany, M.D.Cincinnati, OH 452111649599218
Common questions
What is Ruth Allendoerfer-Fernandez, M.D.'s NPI number?
Ruth Allendoerfer-Fernandez, M.D.'s National Provider Identifier (NPI) is 1013964246, issued on May 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ruth Allendoerfer-Fernandez, M.D. located?
The NPPES record lists a practice address at 4320 Bridgetown RD, Cincinnati, OH, 45211. Phone: (513) 574-4550. Providers update this record themselves, so call before visiting.
How can I verify Ruth Allendoerfer-Fernandez, M.D.'s license?
NPPES lists Ohio license number 35080808A, 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 Ruth Allendoerfer-Fernandez, M.D. prescribe under Medicare Part D?
In 2024, Ruth Allendoerfer-Fernandez, M.D. had 210 Medicare Part D claims for 26 beneficiaries; 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.