Monica Guma, M.D., PH.D.
Rheumatology Physician · La Jolla, CA
Monica Guma, M.D., PH.D. is a rheumatology physician with a practice address in La Jolla, California, and NPI 1346522141, issued on Sep 16, 2011. Check the license (California A126993, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Monica Guma
- Credential
- M.D., PH.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- A126993 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9500 Gilman Drive, La Jolla, CA 92093
- Phone
- (858) 642-3247
- Enumerated
- Sep 16, 2011
- Record last updated
- May 7, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (858) 552-7425
- Medicare enrollment
- Enrolled (PECOS I20140310001906); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 9500 Gilman Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jill Ballard, NPFamily Nurse Practitioner1194927475
- Ruben BarajasStudent in an Organized Health Care Education/Training Program1235076910
- Brad Buchman, M.D.Sports Medicine (Family Medicine) Physician1972704906
- Kristin Cadenhead, MDPsychiatry Physician1194744839
- Sandip Datta, M.D.Internal Medicine Physician1275566648
- Amrita Dosanjh, M.D.Pediatric Pulmonology Physician1972637676
Verify Monica Guma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126993Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average rheumatology physician in 2024
394 Medicare Part D claims for 41 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Hydroxychloroquine Sulfate69 claims
- Methotrexate60 claims
- Leflunomide42 claims
- Ibuprofen27 claims
- Enbrel Sureclick25 claims
- Prednisone25 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.
Industry payments in 2024: $8,693.25
4 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 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
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
Other rheumatology physician records in California
- Khurram Abbass, MDSan Jose, CA1154455178
- Mai Abdelnabi, MDSan Francisco, CA1013394980
- Brian Abe, MD, PHDStanford, CA1104262708
- Thomas Abel, MDMonte Sereno, CA1871679399
- Feruza AbraamyanRoseville, CA1124769278
- Thomas Adamson, M.D.San Diego, CA1639187057
- Sana Afroz, MDMoreno Valley, CA1356724074
- Ishita Aggarwal, MDSan Francisco, CA1518385699
- Atul Agrawal, MDAntioch, CA1528146016
- Bikramjit Ahluwalia, MDApple Valley, CA1669402467
Common questions
What is Monica Guma, M.D., PH.D.'s NPI number?
Monica Guma, M.D., PH.D.'s National Provider Identifier (NPI) is 1346522141, issued on Sep 16, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Monica Guma, M.D., PH.D. located?
The NPPES record lists a practice address at 9500 Gilman Drive, La Jolla, CA, 92093. Phone: (858) 642-3247. Providers update this record themselves, so call before visiting.
How can I verify Monica Guma, M.D., PH.D.'s license?
NPPES lists California license number A126993, 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 Monica Guma, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Monica Guma, M.D., PH.D. had 394 Medicare Part D claims for 41 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.