Katherine Irene Tatar, MD
Internal Medicine Physician · Akron, OH
Katherine Irene Tatar, MD is an internal medicine physician with a practice address in Akron, Ohio, and NPI 1881012284, issued on Apr 2, 2014. Check the license (Ohio 35.129923, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Katherine Irene Tatar
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35.129923 OH
Self-reported in NPPES; status is on the state search - Practice location
- 55 Arch St, Akron, OH 44304
- Phone
- (330) 375-3315
- Enumerated
- Apr 2, 2014
- Record last updated
- Sep 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (330) 375-7779
- Medicaid ID
- 0121812 OH
- Medicare enrollment
- Enrolled (PECOS I20170809003560); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 55 Arch St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Michael Crotty, M.D.Internal Medicine Physician1215199559
Verify Katherine Irene Tatar in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.129923Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average internal medicine physician in 2024
648 Medicare Part D claims for 50 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Amlodipine Besylate44 claims
- Fluticasone Propionate43 claims
- Gabapentin37 claims
- Atorvastatin Calcium34 claims
- Pantoprazole Sodium31 claims
- Levothyroxine Sodium27 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
- Summa Physicians LLCAkron, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Irene Tatar among 5,277 internal medicine physician records in Ohio
Katherine Irene Tatar, MD 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 2014, is newer than 68% of them.
- NPI issued2014 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2014 · median 2006 among the 3,414 with a school on file
- Record last updated2018 · 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).
177 internal medicine physician records list a practice address in Akron
They are 177 of the 10,950 NPPES records with a practice address in Akron, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Akron → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tamara Chandler, M.D.Akron, OH 443041982634812
- Meredith Girard, MDAkron, OH 443041396704219
- Linda Ha, DOAkron, OH 443041689653123
- Gwendolyn Hughes, MDAkron, OH 443041730164187
- William Kerek, MDAkron, OH 443041558349159
- Teresa Koenig, MDAkron, OH 443041386619625
- Erwin Maseelall, MDAkron, OH 443041982604013
- Dale Murphy, MDAkron, OH 443041174502587
Common questions
What is Katherine Irene Tatar, MD's NPI number?
Katherine Irene Tatar, MD's National Provider Identifier (NPI) is 1881012284, issued on Apr 2, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Irene Tatar, MD located?
The NPPES record lists a practice address at 55 Arch St, Akron, OH, 44304. Phone: (330) 375-3315. Providers update this record themselves, so call before visiting.
How can I verify Katherine Irene Tatar, MD's license?
NPPES lists Ohio license number 35.129923, 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 Katherine Irene Tatar, MD prescribe under Medicare Part D?
In 2024, Katherine Irene Tatar, MD had 648 Medicare Part D claims for 50 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.