NPPES file of Aug 9, 2026

Robert Leonard Wiebe, M.D.

Internal Medicine Physician · Vallejo, CA

Robert Leonard Wiebe, M.D. is an internal medicine physician with a practice address in Vallejo, California, and NPI 1922049451, issued on Jun 8, 2006. Check the license (California A39033, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922049451
Name
Robert Leonard Wiebe
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A39033 CA
Self-reported in NPPES; status is on the state search
Practice location
201 Walnut Ave, Vallejo, CA 94592
Phone
(707) 562-8350
Enumerated
Jun 8, 2006
Record last updated
Jul 13, 2026
Fax
(707) 562-8369
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 201 Walnut Ave

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

  1. Mary Beutner, R.N.Diabetes Educator Registered Nurse1538392618
  2. William Chao, D.M.D.Dentist1881127785
  3. Maiti GrabowStudent in an Organized Health Care Education/Training Program1932058393
  4. Anthony Hua, DDSDentist1720702053
  5. Judith Kujawski, NPAdult Health Nurse Practitioner1184694580
  6. Yugin Lam, DMDStudent in an Organized Health Care Education/Training Program1598472490

Verify Robert Leonard Wiebe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A39033
    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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Robert Leonard Wiebe among 17,696 internal medicine physician records in California

Robert Leonard Wiebe, 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 not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2026 · 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).

64 internal medicine physician records list a practice address in Vallejo

They are 64 of the 2,836 NPPES records with a practice address in Vallejo, and 17,696 internal medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Linda Aragon, M.D.Mare Isle, CA 945921922082403
  2. Fred Bayon, M.D.Vallejo, CA 945911225031362
  3. Georgia Allen, DOVallejo, CA 945901508844796
  4. Michael Clearfield, D.O.Vallejo, CA 945901689638561
  5. Cathleen Coulman, M.D.Vallejo, CA 945901689941171
  6. John MaloneVallejo, CA 945901366647513
  7. Mercedes Rivera, M.D.Vallejo, CA 945901730375841
  8. Adebusola AdesinaVallejo, CA 945891386176139

Common questions

What is Robert Leonard Wiebe, M.D.'s NPI number?

Robert Leonard Wiebe, M.D.'s National Provider Identifier (NPI) is 1922049451, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Leonard Wiebe, M.D. located?

The NPPES record lists a practice address at 201 Walnut Ave, Vallejo, CA, 94592. Phone: (707) 562-8350. Providers update this record themselves, so call before visiting.

How can I verify Robert Leonard Wiebe, M.D.'s license?

NPPES lists California license number A39033, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.