John C. Gunnell
Hematology & Oncology Physician · Glendale, CA
John C. Gunnell is a hematology & oncology physician with a practice address in Glendale, California, and NPI 1487765301, issued on Aug 31, 2006. Check the license (California G17573, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John C. Gunnell
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G17573 CA
Self-reported in NPPES; status is on the state search - Practice location
- 435 Arden Ave Ste 520, Glendale, CA 91203
- Phone
- (818) 247-5440
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 00G175730 CA
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify John C. Gunnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G17573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
17 Medicare Part D claims, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
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.
John C. Gunnell among 1,583 hematology & oncology physician records in California
John C. Gunnell is one of 1,583 hematology & oncology physician records with a practice address in California. 83% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2018 · 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 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Glendale → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Mercedes Maruscak, N.P.Glendale, CA 912041154356699
- Zara Sipan, PA-CGlendale, CA 912041770715369
- Kalust Ucar, M.D.Glendale, CA 912041710912175
- Amy Wang, MDGlendale, CA 912041720155609
- Boris Bagdasarian, D.O.Glendale, CA 912061598758062
- Saro Kasparian, M.D.Glendale, CA 912061104350917
- Mihran Shirinian, M.D.Glendale, CA 912061730262122
- Jerry Wada, M.D.Glendale, CA 912061487764379
Common questions
What is John C. Gunnell's NPI number?
John C. Gunnell's National Provider Identifier (NPI) is 1487765301, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John C. Gunnell located?
The NPPES record lists a practice address at 435 Arden Ave Ste 520, Glendale, CA, 91203. Phone: (818) 247-5440. Providers update this record themselves, so call before visiting.
How can I verify John C. Gunnell's license?
NPPES lists California license number G17573, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John C. Gunnell prescribe under Medicare Part D?
In 2024, John C. Gunnell had 17 Medicare Part D claims; the average among hematology & oncology physician prescribers was 877. 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.