Alexandra Michelle Johnston, DO
Internal Medicine Physician · Pittsburgh, PA
Alexandra Michelle Johnston, DO is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1033504253, issued on Apr 3, 2015. Check the license (Pennsylvania OS019357, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Alexandra Michelle Johnston
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OS019357 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4727 Friendship Ave Ste 200, Pittsburgh, PA 15224
- Phone
- (412) 235-5810
- Enumerated
- Apr 3, 2015
- Record last updated
- Oct 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (412) 235-5890
- Medicare enrollment
- Enrolled (PECOS I20181113001068); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 4727 Friendship Ave Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rebecca Behr, D.O.Internal Medicine Physician1386932598
- Judith Black, M.D.,M.H.A.Geriatric Medicine (Internal Medicine) Physician1073508958
- Louise Bucci, CRNPNurse Practitioner1477659258
- Anita Chandra, MDGeriatric Medicine (Internal Medicine) Physician1992168595
- Jessica Embrescia, D.O.Internal Medicine Physician1518304377
- Mrudula Gadani, MDInternal Medicine Physician1063830834
Verify Alexandra Michelle Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS019357Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,706 Medicare Part D claims for 159 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Amlodipine Besylate153 claims
- Atorvastatin Calcium150 claims
- Jardiance77 claims
- Rosuvastatin Calcium72 claims
- Lisinopril65 claims
- Levothyroxine Sodium49 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.
The MIPS final score for 2023 (Medicare payment program): 93.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Allegheny ClinicPittsburgh, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexandra Michelle Johnston among 7,300 internal medicine physician records in Pennsylvania
Alexandra Michelle Johnston, DO is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 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 2015, is newer than 62% of them.
- NPI issued2015 · 62% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2015 · median 2008 among the 4,208 with a school on file
- Record last updated2020 · 56% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
750 internal medicine physician records list a practice address in Pittsburgh
They are 750 of the 28,866 NPPES records with a practice address in Pittsburgh, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Pittsburgh → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Mark Janosko, MDPittsburgh, PA 152241861493850
- Frank Kush, MDPittsburgh, PA 152241093788275
- Christine Lubimir, CRNPPittsburgh, PA 152241700850963
Common questions
What is Alexandra Michelle Johnston, DO's NPI number?
Alexandra Michelle Johnston, DO's National Provider Identifier (NPI) is 1033504253, issued on Apr 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Michelle Johnston, DO located?
The NPPES record lists a practice address at 4727 Friendship Ave Ste 200, Pittsburgh, PA, 15224. Phone: (412) 235-5810. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Michelle Johnston, DO's license?
NPPES lists Pennsylvania license number OS019357, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alexandra Michelle Johnston, DO prescribe under Medicare Part D?
In 2024, Alexandra Michelle Johnston, DO had 1,706 Medicare Part D claims for 159 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Alexandra Michelle Johnston, DO's MIPS final score?
The 2023 MIPS final score is 93.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.