NPPES file of Aug 9, 2026

Patricia A. Gannon, MD

Internal Medicine Physician · Cleveland, OH

Patricia A. Gannon, MD is an internal medicine physician with a practice address in Cleveland, Ohio, and NPI 1639274863, issued on Sep 13, 2006. Check the license (Ohio 35064149, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639274863
Name
Patricia A. Gannon
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
35064149 OH
Self-reported in NPPES; status is on the state search
Practice location
9500 Euclid Ave, Cleveland, OH 44195
Phone
(800) 223-2273
Enumerated
Sep 13, 2006
Record last updated
Jan 31, 2008 (not updated in 18 years: call before relying on the address or phone)
Medicaid ID
0894233 OH
Medicare enrollment
Enrolled (PECOS I20060918000161); accepts Medicare assignment
Medical or professional school
University Of Toledo College Of Medicine, 1990
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 9500 Euclid Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ksenia Aaron, M.D.Otolaryngology Physician1891176582
  2. Maher Abbas, MDColon & Rectal Surgery Physician1508937491
  3. Mohammad Abbasi, MDClinical Cardiac Electrophysiology Physician1346730603
  4. Mahmoud AbbassyStudent in an Organized Health Care Education/Training Program1366872574
  5. Cassandra Abbatemarco, CNPPsychiatric/Mental Health Nurse Practitioner1417645144
  6. Walid Abboud, MDInternal Medicine Physician1245295559

Verify Patricia A. Gannon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35064149
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,404 Medicare Part D claims for 800 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 24 claims were for opioids.

  1. Patricia Gannon8,404
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium559 claims
  2. Losartan Potassium549 claims
  3. Lisinopril462 claims
  4. Atorvastatin Calcium460 claims
  5. Amlodipine Besylate435 claims
  6. Simvastatin412 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.

One hospital affiliation

  1. Cleveland ClinicLakewood, OH · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

897 internal medicine physician records list a practice address in Cleveland

They are 897 of the 30,748 NPPES records with a practice address in Cleveland, and 5,277 internal medicine physician records in Ohio.

Other internal medicine physician records in Ohio

  1. Evan Abalos, D.O.Toledo, OH1194163089
  2. Susan Abbott, MDCincinnati, OH1568414290
  3. Walid Abboud, MDCleveland, OH1245295559
  4. Joelle Abdallah, MDColumbus, OH1912577651
  5. Mandi Abdel Ahad, DOCleveland, OH1235870551
  6. Saaid Abdel-Ghani, M.D.Columbus, OH1598926529
  7. Bahaa Abdelghaffar, MDCleveland, OH1265954275
  8. John Abdelnour, MDCleveland, OH1114656931
  9. Ahmad Abdelrahman, MDToledo, OH1134859192
  10. Nawal Abdi, MDCleveland, OH1154002582

Common questions

What is Patricia A. Gannon, MD's NPI number?

Patricia A. Gannon, MD's National Provider Identifier (NPI) is 1639274863, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Patricia A. Gannon, MD located?

The NPPES record lists a practice address at 9500 Euclid Ave, Cleveland, OH, 44195. Phone: (800) 223-2273. Providers update this record themselves, so call before visiting.

How can I verify Patricia A. Gannon, MD's license?

NPPES lists Ohio license number 35064149, 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 Patricia A. Gannon, MD prescribe under Medicare Part D?

In 2024, Patricia A. Gannon, MD had 8,404 Medicare Part D claims for 800 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.