J Harry Isaacson, MD
Internal Medicine Physician · Cleveland, OH
J Harry Isaacson, MD is an internal medicine physician with a practice address in Cleveland, Ohio, and NPI 1639133192, issued on Apr 13, 2006. Check the license (Ohio 35065380I, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- J Harry Isaacson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35065380I OH
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Euclid Ave, Cleveland, OH 44195
- Phone
- (800) 223-2273
- Enumerated
- Apr 13, 2006
- Record last updated
- Feb 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 0945231 OH
- Medicare enrollment
- Enrolled (PECOS I20060815000354); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 1984
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 9500 Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify J Harry Isaacson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35065380ICheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,968 Medicare Part D claims for 269 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 43 claims were for opioids.
Most prescribed
- Atorvastatin Calcium244 claims
- Simvastatin187 claims
- Amlodipine Besylate140 claims
- Lisinopril132 claims
- Losartan Potassium123 claims
- Hydrochlorothiazide99 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
- Cleveland ClinicCleveland, 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.
J Harry Isaacson among 5,277 internal medicine physician records in Ohio
J Harry Isaacson, MD is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 55% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1984 · median 2006 among the 3,414 with a school on file
- Record last updated2008 · 58% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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.
All 5,277 in Ohio → Every provider in Cleveland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Dhia Aldoori, MDCleveland, OH 441951619941358
- Elena Borukh, MDCleveland, OH 441951497718480
- Steven Feinleib, MDCleveland, OH 441951033173141
- Brian Harte, M.D.Cleveland, OH 441951871557496
- Stephen Hayden, M.D.Cleveland, OH 441951003870551
- Alan Hull, M.D., PH.D.Cleveland, OH 441951235192964
- Anil Jain, MDCleveland, OH 441951700840287
- Linda Lee, MDCleveland, OH 441951568426633
Common questions
What is J Harry Isaacson, MD's NPI number?
J Harry Isaacson, MD's National Provider Identifier (NPI) is 1639133192, issued on Apr 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is J Harry Isaacson, 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 J Harry Isaacson, MD's license?
NPPES lists Ohio license number 35065380I, 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 J Harry Isaacson, MD prescribe under Medicare Part D?
In 2024, J Harry Isaacson, MD had 2,968 Medicare Part D claims for 269 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.