NPPES file of Aug 9, 2026

Christopher Olaoluwa Sobowale, M.D.

Internal Medicine Physician · Downey, CA

Christopher Olaoluwa Sobowale, M.D. is an internal medicine physician with a practice address in Downey, California, and NPI 1821445370, issued on May 14, 2016. Check the license (California A163017, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821445370
Name
Christopher Olaoluwa Sobowale
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
A163017 CA
R75581 AZ
Self-reported in NPPES; status is on the state search
Practice location
8530 Firestone Blvd, Downey, CA 90241
Phone
(562) 867-7999
Enumerated
May 14, 2016
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200204002189); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 8530 Firestone Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Elizabeth AguilaCommunity Health Worker1902384456
  2. Guadalupe AndradeCase Manager/Care Coordinator1245037837
  3. Nicole Cervantes, M.D.Internal Medicine Physician1174985816
  4. Rebecca Chohlas-Wood, MDGeneral Practice Physician1700267465
  5. Amber Harris, DCChiropractor1639937568
  6. Nicole HernandezPrimary Care Nurse Practitioner1861162679

Verify Christopher Olaoluwa Sobowale in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A163017
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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84% fewer Medicare Part D claims than the average internal medicine physician in 2024

523 Medicare Part D claims for 171 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.

  1. Christopher Sobowale523
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium33 claims
  2. Cefpodoxime Proxetil30 claims
  3. Furosemide23 claims
  4. Pradaxa20 claims
  5. Bisoprolol Fumarate18 claims
  6. Prednisone16 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

  1. Southern California Permanente Medical GroupDowney, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Christopher Olaoluwa Sobowale among 17,696 internal medicine physician records in California

Christopher Olaoluwa Sobowale, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

114 internal medicine physician records list a practice address in Downey

They are 114 of the 3,607 NPPES records with a practice address in Downey, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nazar Al-Bussam, MDDowney, CA 902411003999145
  2. Domingo Barrientos, M.D.Downey, CA 902411184685281
  3. Arthur Carrasco, M.D.Downey, CA 902411588601595
  4. Shahryar Davari, MDDowney, CA 902411346244373
  5. Henry Do, M.D.Downey, CA 902411538115290
  6. Alan Frischer, M.D.Downey, CA 902411982701454
  7. Narayana Gunda, M.D.Downey, CA 902411720026271
  8. Vinod Patel, M.D.Downey, CA 902411043226756

Common questions

What is Christopher Olaoluwa Sobowale, M.D.'s NPI number?

Christopher Olaoluwa Sobowale, M.D.'s National Provider Identifier (NPI) is 1821445370, issued on May 14, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Olaoluwa Sobowale, M.D. located?

The NPPES record lists a practice address at 8530 Firestone Blvd, Downey, CA, 90241. Phone: (562) 867-7999. Providers update this record themselves, so call before visiting.

How can I verify Christopher Olaoluwa Sobowale, M.D.'s license?

NPPES lists California license number A163017, 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 Christopher Olaoluwa Sobowale, M.D. prescribe under Medicare Part D?

In 2024, Christopher Olaoluwa Sobowale, M.D. had 523 Medicare Part D claims for 171 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.