Prashan Thiagarajah, MD
Internal Medicine Physician · Pittsburgh, PA
Prashan Thiagarajah, MD is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1184924417, issued on Nov 3, 2010. Check the license (Pennsylvania MD447320, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Prashan Thiagarajah
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD447320 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3601 Mcknight East Dr, Pittsburgh, PA 15237
- Phone
- (412) 369-9943
- Enumerated
- Nov 3, 2010
- Record last updated
- Feb 2, 2023
- Fax
- (412) 369-9447
- Medicaid ID
- 102763637-0005 PA
- Medicare enrollment
- Enrolled (PECOS I20121205000183); accepts Medicare assignment
- 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 3601 Mcknight East Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kelly Distelrath, FNPFamily Nurse Practitioner1477151280
- Maria Funair, PA-CPhysician Assistant1710175948
- Jonna Griffin, NPNurse Practitioner1356741375
- Emily Heckman, PAPhysician Assistant1902327927
- Alka Kaushik, MDAnesthesiology Physician1275586679
Verify Prashan Thiagarajah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD447320Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average internal medicine physician in 2024
7,822 Medicare Part D claims for 687 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 392 claims were for opioids.
Most prescribed
- Atorvastatin Calcium365 claims
- Rosuvastatin Calcium253 claims
- Levothyroxine Sodium216 claims
- Losartan Potassium208 claims
- Pantoprazole Sodium200 claims
- Amlodipine Besylate182 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: $3,133.45
199 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through 4 group practices
- Clearfield-Jefferson Primary Care Associates PCDu Bois, PA
- Genesis Medical Associates, Inc.Pittsburgh, PA
- Keystone Rehabilitation Systems IncSeven Fields, PA
- University OF Pittsburgh PhysiciansPittsburgh, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Prashan Thiagarajah among 7,300 internal medicine physician records in Pennsylvania
Prashan Thiagarajah, MD 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 2010, is newer than 50% of them.
- NPI issued2010 · 50% of these records are older, 48% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2008 · median 2008 among the 4,208 with a school on file
- Record last updated2023 · 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
- James Boyle, M.D.Pittsburgh, PA 152371578541165
- Nancy Carroll, MDPittsburgh, PA 152371982693909
- Douglas Clough, MDPittsburgh, PA 152371497765564
- Ashim Dayalan, MDPittsburgh, PA 152371376508028
- Robin Dietly, M.D.Pittsburgh, PA 152371629056114
- Judith EsmanPittsburgh, PA 152371053332304
- Raymond Gallon, MDPittsburgh, PA 152371144208810
- Donald KlinestiverPittsburgh, PA 152371114904075
Common questions
What is Prashan Thiagarajah, MD's NPI number?
Prashan Thiagarajah, MD's National Provider Identifier (NPI) is 1184924417, issued on Nov 3, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Prashan Thiagarajah, MD located?
The NPPES record lists a practice address at 3601 Mcknight East Dr, Pittsburgh, PA, 15237. Phone: (412) 369-9943. Providers update this record themselves, so call before visiting.
How can I verify Prashan Thiagarajah, MD's license?
NPPES lists Pennsylvania license number MD447320, 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 Prashan Thiagarajah, MD prescribe under Medicare Part D?
In 2024, Prashan Thiagarajah, MD had 7,822 Medicare Part D claims for 687 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.