Ravindrakumar G. Guruswamy, M. D., MPH
Hospitalist Physician · Arcadia, CA
Ravindrakumar G. Guruswamy, M. D., MPH is a hospitalist physician with a practice address in Arcadia, California, and NPI 1063694917, issued on Dec 3, 2007. Check the license (California C55765, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ravindrakumar G. Guruswamy
- Credential
- M. D., MPH
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- C55765 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 W Huntington Dr, Arcadia, CA 91007
- Phone
- (626) 795-2244
- Enumerated
- Dec 3, 2007
- Record last updated
- Dec 26, 2025
- Medicaid IDs
- 5909641 NC
1063694917 VA - Medicare enrollment
- Enrolled (PECOS I20131008001059); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 300 W Huntington Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katherine Agron, NPFamily Nurse Practitioner1538685334
- Raha Akhavan, M.D.Anesthesiology Physician1477577351
- Vincent Antosz, MDInternal Medicine Physician1831150135
- Loren Ayres, M.D.Anatomic Pathology & Clinical Pathology Physician1184693301
- Apryl Jann Bacalso, PTPhysical Therapist1124525340
- Rahtna Banerjee, M.D.Anesthesiology Physician1033430855
Verify Ravindrakumar G. Guruswamy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C55765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average hospitalist physician in 2024
219 Medicare Part D claims for 80 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 28 claims were for opioids.
Most prescribed
- Pantoprazole Sodium21 claims
- Levofloxacin12 claims
- Sulfamethoxazole-Trimethoprim12 claims
- Oxycodone Hcl11 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.
Bills Medicare through one group practice
- City OF Hope Medical FoundationDuarte, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ravindrakumar G. Guruswamy among 3,099 hospitalist physician records in California
Ravindrakumar G. Guruswamy, M. D., MPH is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1999 · median 2010 among the 2,505 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Arcadia → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Brindusa Mudric Tiganu, MDArcadia, CA 910071952465635
- Jayareena Mahalingam, MDArcadia, CA 910061962460097
- Wajidah Abdul-KhabirDuarte, CA 910101215323522
- Hayder AlzubaidiDuarte, CA 910101912263260
- Cornelia Banciu-Odell, MDDuarte, CA 910101487620829
- Catherine Chan, DODuarte, CA 910101255892667
- Michael DittmarDuarte, CA 910101801357439
- Thao Do, M.D.Duarte, CA 910101902268121
Common questions
What is Ravindrakumar G. Guruswamy, M. D., MPH's NPI number?
Ravindrakumar G. Guruswamy, M. D., MPH's National Provider Identifier (NPI) is 1063694917, issued on Dec 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ravindrakumar G. Guruswamy, M. D., MPH located?
The NPPES record lists a practice address at 300 W Huntington Dr, Arcadia, CA, 91007. Phone: (626) 795-2244. Providers update this record themselves, so call before visiting.
How can I verify Ravindrakumar G. Guruswamy, M. D., MPH's license?
NPPES lists California license number C55765, 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 Ravindrakumar G. Guruswamy, M. D., MPH prescribe under Medicare Part D?
In 2024, Ravindrakumar G. Guruswamy, M. D., MPH had 219 Medicare Part D claims for 80 beneficiaries; the average among hospitalist physician prescribers was 521. 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.