Clifford Cloonan, MD
Internal Medicine Physician · Mechanicsburg, PA
Clifford Cloonan, MD is an internal medicine physician with a practice address in Mechanicsburg, Pennsylvania, and NPI 1003854753, issued on Jun 3, 2006. Check the license (Pennsylvania MD423158, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Clifford Cloonan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD423158 PA
Self-reported in NPPES; status is on the state search - Practice location
- 6481 Carlisle Pike, Mechanicsburg, PA 17050
- Phone
- (717) 516-6396
- Enumerated
- Jun 3, 2006
- Entity
- Type 1 · individual
Also registered at 6481 Carlisle Pike
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abby Flinchbaugh, PA-CPhysician Assistant1609412378
- John Green, D.O.Sports Medicine (Preventive Medicine) Physician1528015591
- Peter Kang, M.D.Emergency Medicine Physician1649479932
- Kelly McCracken, PA-CMedical Physician Assistant1760808703
- Stephen Mifsud, DOEmergency Medicine Physician1518007400
- Hien NguyenFamily Nurse Practitioner1124988308
Verify Clifford Cloonan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD423158Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
37 internal medicine physician records list a Mechanicsburg practice address
They are 37 of the 1,659 NPPES records with a Mechanicsburg practice address, and 8,636 internal medicine physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 37 in Mechanicsburg → All 8,636 in Pennsylvania → Every provider in Mechanicsburg →
Other internal medicine physician records in Pennsylvania
- Erin Aakhus, M.D.Philadelphia, PA1255652087
- Muhammad Aamir, MDAllentown, PA1477039147
- Saira Aamir, MDYork, PA1184515686
- John Aaron, MDWest Grove, PA1427094531
- Todd Aaron, MDPhiladelphia, PA1457350522
- Cybele Abad, M.D.Pittsburgh, PA1619900453
- Mario Abad, MDDuncannon, PA1710022975
- Joseph Abalos, M.D.Seneca, PA1215128434
- Ali Abbas, MDYork, PA1023343779
- Huda Abbas, MDDoylestown, PA1316187024
Common questions
What is Clifford Cloonan, MD's NPI number?
Clifford Cloonan, MD's National Provider Identifier (NPI) is 1003854753, issued on Jun 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Clifford Cloonan, MD located?
The NPPES record lists a practice address at 6481 Carlisle Pike, Mechanicsburg, PA, 17050. Phone: (717) 516-6396. Providers update this record themselves, so call before visiting.
How can I verify Clifford Cloonan, MD's license?
NPPES lists Pennsylvania license number MD423158, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.