Douglas Stephen Harrington, M.D.
Anatomic Pathology & Clinical Pathology Physician · Irvine, CA
Douglas Stephen Harrington, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Irvine, California, and NPI 1043430515, issued on Apr 26, 2007. Check the license (California G67234, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Douglas Stephen Harrington
- Credential
- M.D.
- Primary taxonomy
- Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
- License number
- G67234 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9805 Research Dr, Irvine, CA 92618
- Phone
- (949) 547-3140
- Enumerated
- Apr 26, 2007
- Record last updated
- Jan 18, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (949) 333-1442
- Entity
- Type 1 · individual
8 nearest anatomic pathology & clinical pathology physician records → All 1,554 in California → Look up another NPI →
Verify Douglas Stephen Harrington in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G67234Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% fewer Medicare Part D claims than the average anatomic pathology & clinical pathology physician in 2024
144 Medicare Part D claims for 141 beneficiaries, against an average of 192 among the 401 providers of this specialty who prescribed in Part D.
Most prescribed
- Naloxone Hcl140 claims
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.
Douglas Stephen Harrington among 1,554 anatomic pathology & clinical pathology physician records in California
Douglas Stephen Harrington, M.D. 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. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 43% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2011 · 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.
All 1,554 in California → Every provider in Irvine → Anatomic Pathology & Clinical Pathology Physician nationwide →
The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes
- Todd Barry, M.D., PH.D.Irvine, CA 926181598869091
- Simona De Michele, M.D.Irvine, CA 926181306370523
- Najma Gandhi, M.D.Irvine, CA 926181982822250
- Shih-Jwo Huang, M.D. PH.D. FCAPIrvine, CA 926181669415378
- Ifegwu Ibe, M.D.Irvine, CA 926181831506724
- Sameer KhatriIrvine, CA 926181891115796
- Bisma Siddiqi, M.D.Irvine, CA 926181295822849
- Dylan Bach, M.D.Irvine, CA 926141629301700
Common questions
What is Douglas Stephen Harrington, M.D.'s NPI number?
Douglas Stephen Harrington, M.D.'s National Provider Identifier (NPI) is 1043430515, issued on Apr 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Stephen Harrington, M.D. located?
The NPPES record lists a practice address at 9805 Research Dr, Irvine, CA, 92618. Phone: (949) 547-3140. Providers update this record themselves, so call before visiting.
How can I verify Douglas Stephen Harrington, M.D.'s license?
NPPES lists California license number G67234, 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 Douglas Stephen Harrington, M.D. prescribe under Medicare Part D?
In 2024, Douglas Stephen Harrington, M.D. had 144 Medicare Part D claims for 141 beneficiaries; the average among anatomic pathology & clinical pathology physician prescribers was 192. Part D covers Medicare prescriptions only.
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.