Registry data as of Aug 27, 2026

Rachel Chamberlain, DO

Obstetrics & Gynecology Physician · Bishop, CA

Rachel Chamberlain, DO is an obstetrics & gynecology physician with a practice address in Bishop, California, and NPI 1902293277, issued on Apr 23, 2015. Check the license (California 20A18440, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1902293277
Name
Rachel Chamberlain
Credential
DO
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
20A18440 CA
12324127-1204 UT
Self-reported in NPPES; status is on the state search
Practice location
153 Pioneer LN Ste B, Bishop, CA 93514
Phone
(760) 873-2602
Enumerated
Apr 23, 2015
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 153 Pioneer LN Ste B

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

  1. Lois Alexander, FNPNurse Practitioner1447502471
  2. Thomas Boo, MDFamily Medicine Physician1255664124
  3. Linda Christensen, LCSWClinical Social Worker1477021756
  4. Jennifer Figueroa, PAPhysician Assistant1386014181
  5. Elizabeth Haun, FNPFamily Nurse Practitioner1679266266
  6. Martha Kim, M.D.Obstetrics & Gynecology Physician1578539409

Verify Rachel Chamberlain in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A18440
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

25 Medicare Part D claims for 14 beneficiaries, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D.

  1. Rachel Chamberlain25
  2. Specialty average188

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.

One hospital or facility affiliation

  1. Gabert Medical Services IncGlendive, MT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

7 obstetrics & gynecology physician records list a Bishop practice address

They are 7 of the 336 NPPES records with a Bishop practice address, and 5,004 obstetrics & gynecology physician records in California.

Other obstetrics & gynecology physician records in California

  1. Ingrid Aalami, MDSan Jose, CA1952376550
  2. Avisa Abaian- Eagar, M.D.Orange, CA1316057755
  3. Derek Abbassi, MDWalnut Creek, CA1841364155
  4. Nicole Abell, DOVentura, CA1811243603
  5. Zachary AbelsonLos Angeles, CA1689237414
  6. Sina Abhari, MDNewport Beach, CA1073955290
  7. Ray Abinader, M.D.Loma Linda, CA1770901548
  8. Tarek Abou El Kheir, M.D.San Bernardino, CA1477521789
  9. Nada Abou-HaibaLos Angeles, CA1134067549
  10. Ariel Abrahams, MDDowney, CA1376726174

Common questions

What is Rachel Chamberlain, DO's NPI number?

Rachel Chamberlain, DO's National Provider Identifier (NPI) is 1902293277, issued on Apr 23, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Chamberlain, DO located?

The NPPES record lists a practice address at 153 Pioneer LN Ste B, Bishop, CA, 93514. Phone: (760) 873-2602. Providers update this record themselves, so call before visiting.

How can I verify Rachel Chamberlain, DO's license?

NPPES lists California license number 20A18440, 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 Rachel Chamberlain, DO prescribe under Medicare Part D?

In 2024, Rachel Chamberlain, DO had 25 Medicare Part D claims for 14 beneficiaries; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.