Marie Ruth Champlin, D.O.
Psychiatry Physician · Concord, CA
Marie Ruth Champlin, D.O. is a psychiatry physician with a practice address in Concord, California, and NPI 1164718276, issued on Jun 27, 2011. Check the license (California 20A16641, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marie Ruth Champlin
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- 20A16641 CA
558870 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1420 Willow Pass RD Ste 200, Concord, CA 94520
- Phone
- (925) 646-5480
- Enumerated
- Jun 27, 2011
- Record last updated
- Jan 24, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190322001809); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1420 Willow Pass RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mariela AcostaPeer Specialist1831823509
- Terry Ahad, LMFTMarriage & Family Therapist1801095351
- Kevin Collins, MFT/PCCMental Health Counselor1952983181
- Cameron ContrerasPeer Specialist1285299669
- Liza Dalmacio, LCSWClinical Social Worker1982982674
- Adam Danko, N.P.Psychiatric/Mental Health Nurse Practitioner1821392846
Verify Marie Ruth Champlin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A16641Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Alameda Health SystemCastro Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marie Ruth Champlin among 8,673 psychiatry physician records in California
Marie Ruth Champlin, D.O. is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 63% of them.
- NPI issued2011 · 63% of these records are older, 34% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2010 · median 2005 among the 3,295 with a school on file
- Record last updated2019 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Concord → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Arman Danielyan, MDConcord, CA 945201306035050
- Daniel Forkin, M.D.Concord, CA 945201639320674
- Jee Guss, MDConcord, CA 945201932265600
- Douglas Hanlin, M.D.Concord, CA 945201447342902
- Ajani Jackson, MDConcord, CA 945201740411214
- Shahbaz KhanConcord, CA 945201619048295
- Jessica Lee, M.D., MPHConcord, CA 945201265693485
- Sunita Mall, MDConcord, CA 945201548473218
Common questions
What is Marie Ruth Champlin, D.O.'s NPI number?
Marie Ruth Champlin, D.O.'s National Provider Identifier (NPI) is 1164718276, issued on Jun 27, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Marie Ruth Champlin, D.O. located?
The NPPES record lists a practice address at 1420 Willow Pass RD Ste 200, Concord, CA, 94520. Phone: (925) 646-5480. Providers update this record themselves, so call before visiting.
How can I verify Marie Ruth Champlin, D.O.'s license?
NPPES lists California license number 20A16641, 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 Marie Ruth Champlin, D.O.'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.