Timothy David Gilligan, M.D.
Medical Oncology Physician · Cleveland, OH
Timothy David Gilligan, M.D. is a medical oncology physician with a practice address in Cleveland, Ohio, and NPI 1912998113, issued on Nov 4, 2005. Check the license (Ohio 35.086452, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Timothy David Gilligan
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- 35.086452 OH
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Euclid Ave, Cleveland, OH 44195
- Phone
- (216) 444-0391
- Enumerated
- Nov 4, 2005
- Record last updated
- Jul 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (216) 636-1711
- Medicaid IDs
- 2583708 OH
120-1514 MA - Medicare enrollment
- Enrolled (PECOS I20050915000032); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 169 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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- Mahmoud AbbassyStudent in an Organized Health Care Education/Training Program1366872574
- Cassandra Abbatemarco, CNPPsychiatric/Mental Health Nurse Practitioner1417645144
- Walid Abboud, MDInternal Medicine Physician1245295559
Verify Timothy David Gilligan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.086452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average medical oncology physician in 2024
1,051 Medicare Part D claims for 157 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Prednisone266 claims
- Abiraterone Acetate249 claims
- Orgovyx90 claims
- Bicalutamide85 claims
- Xtandi82 claims
- Levothyroxine Sodium42 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.
Timothy David Gilligan among 169 medical oncology physician records in Ohio
Timothy David Gilligan, M.D. is one of 169 medical oncology physician records with a practice address in Ohio. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1996 · median 2006 among the 132 with a school on file
- Record last updated2011 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Ohio
There are 169 medical oncology physician records in Ohio.
All 169 in Ohio → Every provider in Cleveland → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Brian Bolwell, MDCleveland, OH 441951528022282
- G Thomas Budd, MDCleveland, OH 441951457315673
- Robert Dean, MDCleveland, OH 441951306800735
- Khaled Hassan, M.D.Cleveland, OH 441951639291727
- Daniel Heng, MDCleveland, OH 441951245404813
- Susan Legrand, MDCleveland, OH 441951174587794
- Wen Wee Ma, MDCleveland, OH 441951386790517
- Michael Menefee, MDCleveland, OH 441951760598601
Common questions
What is Timothy David Gilligan, M.D.'s NPI number?
Timothy David Gilligan, M.D.'s National Provider Identifier (NPI) is 1912998113, issued on Nov 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Timothy David Gilligan, M.D. located?
The NPPES record lists a practice address at 9500 Euclid Ave, Cleveland, OH, 44195. Phone: (216) 444-0391. Providers update this record themselves, so call before visiting.
How can I verify Timothy David Gilligan, M.D.'s license?
NPPES lists Ohio license number 35.086452, 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 Timothy David Gilligan, M.D. prescribe under Medicare Part D?
In 2024, Timothy David Gilligan, M.D. had 1,051 Medicare Part D claims for 157 beneficiaries; the average among medical oncology physician prescribers was 703. 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.