Daniel P. Mandelbaum, M.D.
Psychiatry Physician · Ukiah, CA
Daniel P. Mandelbaum, M.D. is a psychiatry physician with a practice address in Ukiah, California, and NPI 1407932395, issued on Oct 31, 2006. Check the license (California G21073, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel P. Mandelbaum
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- G21073 CA
Self-reported in NPPES; status is on the state search - Practice location
- 216 W Perkins St, Ukiah, CA 95482
- Phone
- (707) 462-1640
- Enumerated
- Oct 31, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (707) 462-1640
- Medicaid ID
- 00G21073020 CA
- Medicare enrollment
- Enrolled (PECOS I20111121000668); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 216 W Perkins St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Rosoff, MS, LMFTMarriage & Family Therapist1710143961
- Charlene Thompson, MFTMarriage & Family Therapist1457407876
- Susan Vega Pallesen, MFTMarriage & Family Therapist1790998201
Verify Daniel P. Mandelbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G21073Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatry physician in 2024
95 Medicare Part D claims for 12 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Clonazepam19 claims
- Venlafaxine Hcl Er12 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.
Daniel P. Mandelbaum among 8,673 psychiatry physician records in California
Daniel P. Mandelbaum, 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 67% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated1969 · median 2005 among the 3,295 with a school on file
- Record last updated2007 · 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 Ukiah → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Betty Lacy, MDUkiah, CA 954821750431532
- Florence Irvine, M.D.Upper Lake, CA 954851679874861
- Megan Burns, M.D.Sonoma, CA 954761780737080
- John Evans, MDSonoma, CA 954761093733073
- Elena Fowler, MDSonoma, CA 954761457303869
- Soheila Khajavi, MDSonoma, CA 954761942257712
- Richard Kirk, M.D.Sonoma, CA 954761679611750
- Carol Locke, M.D.Sonoma, CA 954761396291225
Common questions
What is Daniel P. Mandelbaum, M.D.'s NPI number?
Daniel P. Mandelbaum, M.D.'s National Provider Identifier (NPI) is 1407932395, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel P. Mandelbaum, M.D. located?
The NPPES record lists a practice address at 216 W Perkins St, Ukiah, CA, 95482. Phone: (707) 462-1640. Providers update this record themselves, so call before visiting.
How can I verify Daniel P. Mandelbaum, M.D.'s license?
NPPES lists California license number G21073, 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 Daniel P. Mandelbaum, M.D. prescribe under Medicare Part D?
In 2024, Daniel P. Mandelbaum, M.D. had 95 Medicare Part D claims for 12 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.