NPPES file of Aug 9, 2026

Bruce David Deas, MD

Internal Medicine Physician · Lakeport, CA

Bruce David Deas, MD is an internal medicine physician with a practice address in Lakeport, California, and NPI 1639189715, issued on Aug 9, 2006. Check the license (California G67934, 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
1639189715
Name
Bruce David Deas
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G67934 CA
Self-reported in NPPES; status is on the state search
Practice location
5176 Hill Road E., Lakeport, CA 95453
Phone
(707) 262-5000
Enumerated
Aug 9, 2006
Record last updated
Mar 13, 2024
Medicaid ID
00G679340 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.
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Also registered at 5176 Hill Road E.

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

  1. Carleene Cady, NPPersonal Emergency Response Attendant1063422954
  2. Edward Fedun, MDEmergency Medicine Physician1982614061
  3. Garrel Miller, PAPersonal Emergency Response Attendant1760492862
  4. Ronald Miller, PAPersonal Emergency Response Attendant1891705786
  5. Steven Shifflett, MDAddiction Medicine (Internal Medicine) Physician1558371641

Verify Bruce David Deas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G67934
    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

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

64 Medicare Part D claims for 51 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Bruce Deas64
  2. Specialty average3,176

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.

Bruce David Deas among 17,696 internal medicine physician records in California

Bruce David Deas, 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 updated2024 · 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).

12 internal medicine physician records list a practice address in Lakeport

They are 12 of the 375 NPPES records with a practice address in Lakeport, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Keith Arnold, MDLakeport, CA 954531750561379
  2. Harneet Bath, M.D.Lakeport, CA 954531679747760
  3. Elyse Donald, M.D.Lakeport, CA 954531568487684
  4. Anju Goel, MD, MPHLakeport, CA 954531851622518
  5. Diane Pege, MDLakeport, CA 954531346324589
  6. Yvonne Riba, PALakeport, CA 954531780782615
  7. John Schweifler, M.D.Lakeport, CA 954531407871627
  8. Charles Seage, M.D.Lakeport, CA 954531124348396

Common questions

What is Bruce David Deas, MD's NPI number?

Bruce David Deas, MD's National Provider Identifier (NPI) is 1639189715, issued on Aug 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Bruce David Deas, MD located?

The NPPES record lists a practice address at 5176 Hill Road E., Lakeport, CA, 95453. Phone: (707) 262-5000. Providers update this record themselves, so call before visiting.

How can I verify Bruce David Deas, MD's license?

NPPES lists California license number G67934, 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 Bruce David Deas, MD prescribe under Medicare Part D?

In 2024, Bruce David Deas, MD had 64 Medicare Part D claims for 51 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.