Caroline Cao
Internal Medicine Physician · Pittsburgh, PA
Caroline Cao is an internal medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1285326785, issued on May 23, 2023. Check the license (Pennsylvania MD494363, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Caroline Cao
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD494363 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3459 5TH Ave Ste 9, Pittsburgh, PA 15213
- Phone
- (412) 692-4888
- Enumerated
- May 23, 2023
- Record last updated
- Jul 13, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Also registered at 3459 5TH Ave Ste 9
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caroline Cao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD494363Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
142 Medicare Part D claims for 41 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of 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.
Caroline Cao among 7,300 internal medicine physician records in Pennsylvania
Caroline Cao 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 2023, is newer than 89% of them.
- NPI issued2023 · 89% of these records are older, 7% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2026 · 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
- Ellen Berne, MDPittsburgh, PA 152131528033321
- Peter BulovaPittsburgh, PA 152131912979956
- Gregory Bump, MDPittsburgh, PA 152131437190261
- Mark Duca, MDPittsburgh, PA 152131023081445
- Kristian Feterik, MDPittsburgh, PA 152131437113529
- Rosanne Granieri, MDPittsburgh, PA 152131629041512
- Jaishree HariharanPittsburgh, PA 152131700837531
- Keith Lagnese, MDPittsburgh, PA 152131801859509
Common questions
What is Caroline Cao's NPI number?
Caroline Cao's National Provider Identifier (NPI) is 1285326785, issued on May 23, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Cao located?
The NPPES record lists a practice address at 3459 5TH Ave Ste 9, Pittsburgh, PA, 15213. Phone: (412) 692-4888. Providers update this record themselves, so call before visiting.
How can I verify Caroline Cao's license?
NPPES lists Pennsylvania license number MD494363, 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 Caroline Cao prescribe under Medicare Part D?
In 2024, Caroline Cao had 142 Medicare Part D claims for 41 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.