John Anthony Glaspy, MD
Hematology & Oncology Physician · Los Angeles, CA
John Anthony Glaspy, MD is a hematology & oncology physician with a practice address in Los Angeles, California, and NPI 1639104250, issued on Jul 12, 2006. Check the license (California G42778, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Anthony Glaspy
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G42778 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Medical Plz, Los Angeles, CA 90095
- Phone
- (310) 794-4955
- Enumerated
- Jul 12, 2006
- Record last updated
- Mar 30, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (310) 443-0477
- Medicaid ID
- 00G427780 CA
- Medicare enrollment
- Enrolled (PECOS I20120117000133); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1979
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 100 Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Anthony Glaspy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42778Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
45 Medicare Part D claims for 22 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Anastrozole31 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): 86.1 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).
Industry payments in 2024: $12,071.65
11 payments; by number, the most common kind was travel and lodging; the largest payer was Acrotech Biopharma Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaTorrance, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
Other hematology & oncology physician records in California
- Mark Abate, M.D.Santa Barbara, CA1588778674
- Iman Abdalla, MDLos Angeles, CA1730248311
- Haifaa Abdulhaq, MDFresno, CA1508024647
- Nihal Abdulla, MDLos Alamitos, CA1750585345
- Mehrad Abedi, M.D.Sacramento, CA1467459222
- Oyewale Abidoye, M.D.La Jolla, CA1790841815
- Mohammed Abu Zaanona, MDSanta Barbara, CA1922591197
- Mohamad Adada, M.D., PHDRoseville, CA1528590734
- Jesse Adams, MDSacramento, CA1851479554
- Thompson Adams, MDSanta Monica, CA1407880891
Common questions
What is John Anthony Glaspy, MD's NPI number?
John Anthony Glaspy, MD's National Provider Identifier (NPI) is 1639104250, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Anthony Glaspy, MD located?
The NPPES record lists a practice address at 100 Medical Plz, Los Angeles, CA, 90095. Phone: (310) 794-4955. Providers update this record themselves, so call before visiting.
How can I verify John Anthony Glaspy, MD's license?
NPPES lists California license number G42778, 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 Anthony Glaspy, MD prescribe under Medicare Part D?
In 2024, John Anthony Glaspy, MD had 45 Medicare Part D claims for 22 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is John Anthony Glaspy, MD's MIPS final score?
The 2023 MIPS final score is 86.1 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.