Bhrett Allison Lash, MD
Internal Medicine Physician · Oakland, CA
Bhrett Allison Lash, MD is an internal medicine physician with a practice address in Oakland, California, and NPI 1568489383, issued on Jul 16, 2006. Check the license (California A76274, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bhrett Allison Lash
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A76274 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2950 International Blvd, Oakland, CA 94601
- Phone
- (510) 535-4400
- Enumerated
- Jul 16, 2006
- Record last updated
- Jan 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20131220000411); accepts Medicare assignment
- Medical or professional school
- University Of Florida College Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2950 International Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Acosta, RDADental Assistant1932529658
- Karina Alcala BarbosaDentist1831608876
- Sandy AlegriaCase Manager/Care Coordinator1285220228
- Christopher Balkissoon, DNP, MSN, FNP-CFamily Nurse Practitioner1598159410
- Dipti Barot, M.D.General Practice Physician1689972184
- Jennifer BarreraFamily Nurse Practitioner1730876822
Verify Bhrett Allison Lash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
13,431 Medicare Part D claims for 1,384 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 73 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,401 claims
- Amlodipine Besylate915 claims
- Metformin Hcl501 claims
- Gabapentin489 claims
- Losartan Potassium420 claims
- Lisinopril414 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 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Alameda Health SystemOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bhrett Allison Lash among 17,696 internal medicine physician records in California
Bhrett Allison Lash, MD 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 fileYes · 63% of these records are
- Graduated2000 · median 2004 among the 11,065 with a school on file
- Record last updated2012 · 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.
All 17,696 in California → Every provider in Oakland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Zaina El-Isa, MDOakland, CA 946011861623555
- Claire Horton, MDOakland, CA 946011649374109
- Astha Kanani, M.D.Oakland, CA 946011770880163
- Esteban Lovato, M.D.Oakland, CA 946011376610923
- Joseph Marquis, MDOakland, CA 946011598084329
- John Murphy, M.D.Oakland, CA 946011437119591
- Bruce O'Neil, M.D.Oakland, CA 946011255399580
- Mark Robb, MDOakland, CA 946011053499665
Common questions
What is Bhrett Allison Lash, MD's NPI number?
Bhrett Allison Lash, MD's National Provider Identifier (NPI) is 1568489383, issued on Jul 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bhrett Allison Lash, MD located?
The NPPES record lists a practice address at 2950 International Blvd, Oakland, CA, 94601. Phone: (510) 535-4400. Providers update this record themselves, so call before visiting.
How can I verify Bhrett Allison Lash, MD's license?
NPPES lists California license number A76274, 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 Bhrett Allison Lash, MD prescribe under Medicare Part D?
In 2024, Bhrett Allison Lash, MD had 13,431 Medicare Part D claims for 1,384 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Bhrett Allison Lash, MD's MIPS final score?
The 2023 MIPS final score is 91 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.