Matthew Littlefield, M.D.
Psychiatry Physician · Pittsburg, CA
Matthew Littlefield, M.D. is a psychiatry physician with a practice address in Pittsburg, California, and NPI 1861640146, issued on Aug 29, 2008. Check the license (California A114067, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Matthew Littlefield
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- A114067 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2311 Loveridge RD, Pittsburg, CA 94565
- Phone
- (925) 431-2600
- Enumerated
- Aug 29, 2008
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20121115000116); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 2311 Loveridge RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aileen Ambrosio, RNRegistered Nurse1376887968
- Sarabjot AzodePsychiatric/Mental Health Registered Nurse1285494823
- Sakura Barrientos, RNAdult Psychiatric/Mental Health Registered Nurse1871958645
- Christine BrightonOccupational Therapist1144555749
- Mayra Carrillo, MDFamily Medicine Physician1407372170
- Cheyenne Carson-CraftClinical Social Worker1700319225
Verify Matthew Littlefield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A114067Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average psychiatry physician in 2024
2,467 Medicare Part D claims for 304 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Lorazepam212 claims
- Trazodone Hcl187 claims
- Escitalopram Oxalate144 claims
- Bupropion Xl143 claims
- Bupropion Hcl Sr102 claims
- Clonazepam97 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.
Bills Medicare through one group practice
- Permanente Medical Group IncWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Littlefield among 8,673 psychiatry physician records in California
Matthew Littlefield, M.D. 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 2008, is newer than 52% of them.
- NPI issued2008 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2008 · median 2005 among the 3,295 with a school on file
- Record last updated2022 · 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).
11 psychiatry physician records list a practice address in Pittsburg
They are 11 of the 593 NPPES records with a practice address in Pittsburg, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Pittsburg → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Hala Fattah, MDPittsburg, CA 945651669510848
- Uzma Khan, M.DPittsburg, CA 945651053517490
- Tina Le, M.D.Pittsburg, CA 945651902936768
- Michael Levin, MDPittsburg, CA 945651427139591
- Karen Marcus, M.D.Pittsburg, CA 945651003043993
- Sandhya Nair, M.DPittsburg, CA 945651609065432
- Roobal Sekhon, D.O.Pittsburg, CA 945651427261528
- Robert Streett, MDPittsburg, CA 945651790863892
Common questions
What is Matthew Littlefield, M.D.'s NPI number?
Matthew Littlefield, M.D.'s National Provider Identifier (NPI) is 1861640146, issued on Aug 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Littlefield, M.D. located?
The NPPES record lists a practice address at 2311 Loveridge RD, Pittsburg, CA, 94565. Phone: (925) 431-2600. Providers update this record themselves, so call before visiting.
How can I verify Matthew Littlefield, M.D.'s license?
NPPES lists California license number A114067, 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 Matthew Littlefield, M.D. prescribe under Medicare Part D?
In 2024, Matthew Littlefield, M.D. had 2,467 Medicare Part D claims for 304 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.