NPPES file of Aug 9, 2026

Priscilla R. Flores, DO

Internal Medicine Physician · Oakland, CA

Priscilla R. Flores, DO is an internal medicine physician with a practice address in Oakland, California, and NPI 1922186428, issued on Nov 1, 2006. Check the license (California 20A9137, 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
1922186428
Name
Priscilla R. Flores
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A9137 CA
Self-reported in NPPES; status is on the state search
Practice location
275 W Macarthur Blvd, Oakland, CA 94611
Phone
(510) 752-1000
Enumerated
Nov 1, 2006
Record last updated
Dec 27, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 275 W Macarthur Blvd

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

  1. David Aaronson, MDUrology Physician1215053129
  2. Paul-Andre Abboud, M.D.Emergency Medicine Physician1710065503
  3. Brittany Abeldt, MDPsychiatry Physician1982353884
  4. Bilal Abu-Alrub, DOStudent in an Organized Health Care Education/Training Program1609760768
  5. Walter Acuna, MDInternal Medicine Physician1972655108
  6. Brett Adams, MDStudent in an Organized Health Care Education/Training Program1841731098

Verify Priscilla R. Flores in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A9137
    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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34% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,104 Medicare Part D claims for 354 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 76 claims were for opioids.

  1. Priscilla Flores2,104
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium189 claims
  2. Hydrochlorothiazide127 claims
  3. Amlodipine Besylate107 claims
  4. Levothyroxine Sodium83 claims
  5. Lisinopril81 claims
  6. Fluticasone Propionate65 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.

Priscilla R. Flores among 17,696 internal medicine physician records in California

Priscilla R. Flores, DO 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 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • 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).

432 internal medicine physician records list a practice address in Oakland

They are 432 of the 18,558 NPPES records with a practice address in Oakland, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Thomas Baudendistel, MDOakland, CA 946111801820436
  2. Rachel Canning, MDOakland, CA 946111386657609
  3. Howard Chang, MDOakland, CA 946111700845336
  4. Roopal Desai, MDOakland, CA 946111699861484
  5. Matthew Frankel, M.D., M.B.AOakland, CA 946111568542405
  6. Thomas Hackford, M.D.Oakland, CA 946111972598639
  7. Jacqueline Kiang, MDOakland, CA 946111376506600
  8. Katherine McLane, MDOakland, CA 946111447270186

Common questions

What is Priscilla R. Flores, DO's NPI number?

Priscilla R. Flores, DO's National Provider Identifier (NPI) is 1922186428, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Priscilla R. Flores, DO located?

The NPPES record lists a practice address at 275 W Macarthur Blvd, Oakland, CA, 94611. Phone: (510) 752-1000. Providers update this record themselves, so call before visiting.

How can I verify Priscilla R. Flores, DO's license?

NPPES lists California license number 20A9137, 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 Priscilla R. Flores, DO prescribe under Medicare Part D?

In 2024, Priscilla R. Flores, DO had 2,104 Medicare Part D claims for 354 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.