NPPES file of Aug 9, 2026

Lyn E. Berry, MD

Internal Medicine Physician · Oakland, CA

Lyn E. Berry, MD is an internal medicine physician with a practice address in Oakland, California, and NPI 1528078193, issued on Aug 8, 2006. Check the license (California G50678, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528078193
Name
Lyn E. Berry
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G50678 CA
Self-reported in NPPES; status is on the state search
Practice location
1411 E 31St Street, Oakland, CA 94602
Phone
(510) 437-4323
Enumerated
Aug 8, 2006
Record last updated
Jan 11, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(510) 437-5042
Medicaid ID
00G506780 CA
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.
Download card Updates feed

Also registered at 1411 E 31St Street

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

  1. Sharon Abram, LCSWClinical Social Worker1467632265
  2. Ronald Adler, MDGastroenterology Physician1134206162
  3. Kristina Barrientos, MDStudent in an Organized Health Care Education/Training Program1891490579
  4. Johara Chapman, MDObstetrics & Gynecology Physician1447260021
  5. Kathleen Clanon, MDAllergy & Immunology Physician1386654945
  6. Teresa Diaz, MDObstetrics & Gynecology Physician1194735753

Verify Lyn E. Berry in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G50678
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

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.

  1. Qualityout of 100 · 30% of the final score82.1
  2. Costout of 100 · 30%64.1
  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).

Lyn E. Berry among 17,696 internal medicine physician records in California

Lyn E. Berry, 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 fileNo · 63% of these records are
  • 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.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Helen Driscoll, MDOakland, CA 946021720168230
  2. Julia Follette, M.D.Oakland, CA 946021730364480
  3. Sheira Freedman, MDOakland, CA 946021700896396
  4. Elaina Guerin, D.O.Oakland, CA 946021720286446
  5. Kathleen Hicks, M.D.Oakland, CA 946021902850209
  6. Francisco Isolani, M.D.Oakland, CA 946021326185265
  7. Annemarie Mallick, D.O.Oakland, CA 946021588633507
  8. Sunita Mistry, MDOakland, CA 946021962412551

Common questions

What is Lyn E. Berry, MD's NPI number?

Lyn E. Berry, MD's National Provider Identifier (NPI) is 1528078193, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lyn E. Berry, MD located?

The NPPES record lists a practice address at 1411 E 31St Street, Oakland, CA, 94602. Phone: (510) 437-4323. Providers update this record themselves, so call before visiting.

How can I verify Lyn E. Berry, MD's license?

NPPES lists California license number G50678, 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.

What is Lyn E. Berry, 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.