Diane Armstrong, M.D.
Family Medicine Physician · Fairfield, OH
Diane Armstrong, M.D. is a family medicine physician with a practice address in Fairfield, Ohio, and NPI 1104913508, issued on Oct 6, 2006. Check the license (Ohio 35056729, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Diane Armstrong
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35056729 OH
Self-reported in NPPES; status is on the state search - Practice location
- 544 Patterson Blvd, Fairfield, OH 45014
- Phone
- (513) 896-9595
- Enumerated
- Oct 6, 2006
- Entity
- Type 1 · individual
Also registered at 544 Patterson Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin Hartman, MDInternal Medicine Physician1710150933
- Samar Hijazi, MDInternal Medicine Physician1003888090
- Md. Wahidul Islam, MDInternal Medicine Physician1699717504
- Katherine Keating, CNPFamily Nurse Practitioner1548770597
- Ziad Khatib, MDInternal Medicine Physician1083686075
- Kendra Lykins, CNPGerontology Nurse Practitioner1407301112
Verify Diane Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35056729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
3.3 times the Medicare Part D claims of the average family medicine physician in 2024
11,697 Medicare Part D claims for 571 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 252 claims were for opioids.
Most prescribed
- Atorvastatin Calcium834 claims
- Amlodipine Besylate454 claims
- Levothyroxine Sodium410 claims
- Gabapentin301 claims
- Pantoprazole Sodium285 claims
- Lisinopril270 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.
Industry payments in 2024: $33.45
1 payment, mostly food and beverage; the largest payer was Imperative Care, Inc. The 53,013 providers of this specialty with any payment received $861.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Mercy Health Physicians Cincinnati LLCFairfield, OH
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
17 family medicine physician records list a Fairfield practice address
They are 17 of the 1,280 NPPES records with a Fairfield practice address, and 5,361 family medicine physician records in Ohio.
All 17 in Fairfield → All 5,361 in Ohio → Every provider in Fairfield →
Other family medicine physician records in Ohio
- John Philamer Abad, M.D.Westerville, OH1356376800
- Katarina Abadie, M.D.Solon, OH1760917447
- Heeran Abawi, M.D.Fairfield, OH1932337649
- Zena Abd-AlahadToledo, OH1659878239
- Ghassan Abdallah, M.D.Middleburg Heights, OH1265531859
- Karyn Abdallah, M.D.Middleburg Heights, OH1477652816
- Mohamed Abdo, DODelaware, OH1083293229
- Neelab Abdullah, MDCleveland, OH1538806922
- Johnny Abi-Rached, DOVermilion, OH1548902018
- Katherine Able-Perkins, D.O.Athens, OH1174751143
Common questions
What is Diane Armstrong, M.D.'s NPI number?
Diane Armstrong, M.D.'s National Provider Identifier (NPI) is 1104913508, issued on Oct 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Diane Armstrong, M.D. located?
The NPPES record lists a practice address at 544 Patterson Blvd, Fairfield, OH, 45014. Phone: (513) 896-9595. Providers update this record themselves, so call before visiting.
How can I verify Diane Armstrong, M.D.'s license?
NPPES lists Ohio license number 35056729, 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 Diane Armstrong, M.D. prescribe under Medicare Part D?
In 2024, Diane Armstrong, M.D. had 11,697 Medicare Part D claims for 571 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.