Blase G. Hennessy, M.D.
Internal Medicine Physician · Columbus, OH
Blase G. Hennessy, M.D. is an internal medicine physician with a practice address in Columbus, Ohio, and NPI 1386936755, issued on May 4, 2011. Check the license (Ohio 35122032, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Blase G. Hennessy
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35122032 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3525 Olentangy River RD, Columbus, OH 43214
- Phone
- (614) 255-6900
- Enumerated
- May 4, 2011
- Record last updated
- Jul 9, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (614) 255-6901
- Medicare enrollment
- Enrolled (PECOS I20140724002585); accepts Medicare assignment
- Medical or professional school
- Toledo Medical College, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 3525 Olentangy River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Adams, DODiagnostic Radiology Physician1568473627
- Kailey Aksel, MSPAS, PA-CPhysician Assistant1841679677
- Tayma Al Faruqi, M.D.Diagnostic Radiology Physician1578542700
- Mark Alfonso, M.D.Diagnostic Radiology Physician1548264872
- Muhammad Amir, M.D.Hospitalist Physician1760432603
- Gregory Balturshot, M.D.Neurological Surgery Physician1043216724
Verify Blase G. Hennessy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35122032Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
307 Medicare Part D claims for 96 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Pantoprazole Sodium54 claims
- Furosemide19 claims
- Metoprolol Succinate18 claims
- Atorvastatin Calcium17 claims
- Eliquis12 claims
- Bumetanide11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Ohio Primary Care Physicians, Inc.Columbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Blase G. Hennessy among 5,277 internal medicine physician records in Ohio
Blase G. Hennessy, M.D. 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 2011, is newer than 60% of them.
- NPI issued2011 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2011 · median 2006 among the 3,414 with a school on file
- Record last updated2015 · 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).
580 internal medicine physician records list a practice address in Columbus
They are 580 of the 36,491 NPPES records with a practice address in Columbus, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melissa Brasco, D.O.Columbus, OH 432141841274305
- Timothy Coss, DOColumbus, OH 432141720071699
- Diana Donati, M.D.Columbus, OH 432141184628869
- Francine Giannetto, M.D.Columbus, OH 432141548243223
- William Gramann, M.D.Columbus, OH 432141093798779
- Marietta Hofmeister, M.D.Columbus, OH 432141639152317
- Joseph Jacko, MDColumbus, OH 432141730185844
- David Lahue, M.D.Columbus, OH 432141861476327
Common questions
What is Blase G. Hennessy, M.D.'s NPI number?
Blase G. Hennessy, M.D.'s National Provider Identifier (NPI) is 1386936755, issued on May 4, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Blase G. Hennessy, M.D. located?
The NPPES record lists a practice address at 3525 Olentangy River RD, Columbus, OH, 43214. Phone: (614) 255-6900. Providers update this record themselves, so call before visiting.
How can I verify Blase G. Hennessy, M.D.'s license?
NPPES lists Ohio license number 35122032, 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 Blase G. Hennessy, M.D. prescribe under Medicare Part D?
In 2024, Blase G. Hennessy, M.D. had 307 Medicare Part D claims for 96 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Blase G. Hennessy, M.D.'s MIPS final score?
The 2023 MIPS final score is 82.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.