Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Douglas Eugene Hanlin, MD

Individual provider Psychiatry Physician · NPI 1447342902

Dr. Douglas Eugene Hanlin, MD practises Psychiatry in Concord, California. Graduated from Medical College of Ohio in 1982, 44 years ago. Practices with Contra Costa County, a 73-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
44
Trained at
Medical College of Ohio
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1420 Willow Pass Rd Ste 200
Concord, CA 94520-5223 Not confirmed with CMS for 11 years — call before visiting
Phone: (925) 646-5482
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence G86099 (CA)

Record details

NPI number1447342902
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 29, 2006
Last updated in NPPESMay 9, 2015

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolMEDICAL COLLEGE OF OHIO
Graduated 1982 (44 years in practice)
Group practice Contra Costa County — 73 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients42
Services billed 132 a service is one billed item, such as a visit, a test or a procedure
Average patient age53

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Contra Costa County

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 73 clinicians in the practice; 12 are shown here.

Other providers in Concord