NPPES file of Aug 9, 2026

Michael Charles Merwin, MD

Anatomic Pathology & Clinical Pathology Physician · Oroville, CA

Michael Charles Merwin, MD is an anatomic pathology & clinical pathology physician with a practice address in Oroville, California, and NPI 1326158445, issued on Aug 30, 2006. Check the license (California G85015, 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
1326158445
Name
Michael Charles Merwin
Credential
MD
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
G85015 CA
84219 NM
Self-reported in NPPES; status is on the state search
Practice location
2767 Olive Highway, Oroville, CA 95966
Phone
(530) 532-8320
Enumerated
Aug 30, 2006
Record last updated
Feb 28, 2014 (not updated in 12 years: call before relying on the address or phone)
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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8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →

Also registered at 2767 Olive Highway

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

  1. Danielle Aaroe, FAMILY NURSE PRACTITFamily Nurse Practitioner1750767083
  2. Laila Chandy, MDAnatomic Pathology & Clinical Pathology Physician1760590301
  3. Olivia Farnworth, CRNACertified Registered Nurse Anesthetist1649168857
  4. David Hall, MDEmergency Medicine Physician1417993502
  5. Howard McArthur, PAPhysician Assistant1366510331
  6. Thomas Newlander, CRNARegistered Nurse1053365726

Verify Michael Charles Merwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G85015    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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Michael Charles Merwin among 1,554 anatomic pathology & clinical pathology physician records in California

Michael Charles Merwin, MD is one of 1,554 anatomic pathology & clinical pathology physician records with a practice address in California. 65% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 57% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • 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 207ZP0102X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in California

There are 1,554 anatomic pathology & clinical pathology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,554 in California → Every provider in Oroville → Anatomic Pathology & Clinical Pathology Physician nationwide →

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Laila Chandy, MDOroville, CA 959661760590301
  2. Michael Russell, M.D.Oroville, CA 959661699965095
  3. Gregory Schneringer, M.D.Oroville, CA 959661457341489
  4. Josephine Aguilar-Jakthong, MDGrass Valley, CA 959451710249693
  5. Tikoes Blankenberg, M.D.Redding, CA 960011518022698
  6. Ronald England, D.O.Redding, CA 960011578620472
  7. John Greaves, M.D.Redding, CA 960011821221136
  8. Edward Laine, DORedding, CA 960011972583102

Common questions

What is Michael Charles Merwin, MD's NPI number?

Michael Charles Merwin, MD's National Provider Identifier (NPI) is 1326158445, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael Charles Merwin, MD located?

The NPPES record lists a practice address at 2767 Olive Highway, Oroville, CA, 95966. Phone: (530) 532-8320. Providers update this record themselves, so call before visiting.

How can I verify Michael Charles Merwin, MD's license?

NPPES lists California license number G85015, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.