NPPES file of Aug 9, 2026

Blake Elizabeth Gregory, M.D.

Internal Medicine Physician · Oakland, CA

Blake Elizabeth Gregory, M.D. is an internal medicine physician with a practice address in Oakland, California, and NPI 1881912129, issued on May 11, 2010. Check the license (California A119282, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881912129
Name
Blake Elizabeth Gregory
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A119282 CA
Self-reported in NPPES; status is on the state search
Practice location
1411 E 31St St, Oakland, CA 94602
Phone
(214) 537-8323
Enumerated
May 11, 2010
Record last updated
Aug 15, 2014 (not updated in 12 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130621000334); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 2010
Telehealth
Offers telehealth (CMS)
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 1411 E 31St St

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

  1. Shahram Aarabi, MDVascular Surgery Physician1972700458
  2. Marwan Abdelrahim, M.D.Internal Medicine Physician1538693650
  3. Oluwayemisi Adejumo, M.D.Interventional Cardiology Physician1699031179
  4. Tessa Adler, MDEmergency Medicine Physician1558065524
  5. Omonivie Agboghidi, MDStudent in an Organized Health Care Education/Training Program1104576065
  6. Ruta AionoLactation Consultant (Non-RN)1518833375

Verify Blake Elizabeth Gregory in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A119282
    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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38% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,979 Medicare Part D claims for 116 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 63 claims were for opioids.

  1. Blake Gregory1,979
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium164 claims
  2. Amlodipine Besylate92 claims
  3. Metformin Hcl68 claims
  4. Furosemide64 claims
  5. Gabapentin61 claims
  6. Tamsulosin Hcl51 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): 91.9 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.

  1. Qualityout of 100 · 30% of the final score83.5
  2. Costout of 100 · 30%68.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. City And County OF San FranciscoSan Francisco, CA
  2. University OF California Sfgh Medical GroupSan Francisco, CA

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

Blake Elizabeth Gregory among 17,696 internal medicine physician records in California

Blake Elizabeth Gregory, 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 2010, is newer than 63% of them.

  • NPI issued2010 · 63% of these records are older, 34% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2010 · median 2004 among the 11,065 with a school on file
  • Record last updated2014 · 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. Lyn Berry, MDOakland, CA 946021528078193
  2. Helen Driscoll, MDOakland, CA 946021720168230
  3. Julia Follette, M.D.Oakland, CA 946021730364480
  4. Sheira Freedman, MDOakland, CA 946021700896396
  5. Elaina Guerin, D.O.Oakland, CA 946021720286446
  6. Kathleen Hicks, M.D.Oakland, CA 946021902850209
  7. Francisco Isolani, M.D.Oakland, CA 946021326185265
  8. Annemarie Mallick, D.O.Oakland, CA 946021588633507

Common questions

What is Blake Elizabeth Gregory, M.D.'s NPI number?

Blake Elizabeth Gregory, M.D.'s National Provider Identifier (NPI) is 1881912129, issued on May 11, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Blake Elizabeth Gregory, M.D. located?

The NPPES record lists a practice address at 1411 E 31St St, Oakland, CA, 94602. Phone: (214) 537-8323. Providers update this record themselves, so call before visiting.

How can I verify Blake Elizabeth Gregory, M.D.'s license?

NPPES lists California license number A119282, 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 Blake Elizabeth Gregory, M.D. prescribe under Medicare Part D?

In 2024, Blake Elizabeth Gregory, M.D. had 1,979 Medicare Part D claims for 116 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Blake Elizabeth Gregory, M.D.'s MIPS final score?

The 2023 MIPS final score is 91.9 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.