Daniel Notzon, M.D.
Addiction Psychiatry Physician · San Rafael, CA
Daniel Notzon, M.D. is an addiction psychiatry physician with a practice address in San Rafael, California, and NPI 1992949457, issued on Apr 28, 2009. Check the license (California A143089, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Daniel Notzon
- Credential
- M.D.
- Primary taxonomy
- Addiction Psychiatry Physician 2084P0802X
- License numbers
- A143089 CA
259028 NY
Self-reported in NPPES; status is on the state search - Practice location
- 111 Smith Ranch RD, San Rafael, CA 94903
- Phone
- (646) 783-2594
- Enumerated
- Apr 28, 2009
- Record last updated
- Dec 17, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest addiction psychiatry physician records → All 73 in California → Look up another NPI →
Also registered at 111 Smith Ranch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gurpreet Aujla, M.D.Psychiatry Physician1942696323
- Maxwell Berlyant, PHDPsychologist1295398519
- Laura BollesMarriage & Family Therapist1235788308
- Sara BrookerPsychologist1821353541
- Laura Cohen, PH.D.Counseling Psychologist1962063537
- Denise Coquia, PHDClinical Psychologist1477384337
Verify Daniel Notzon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A143089Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average addiction psychiatry physician in 2024
1,701 Medicare Part D claims for 117 beneficiaries, against an average of 716 among the 421 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 14 claims were for opioids.
Most prescribed
- Buprenorphine-Naloxone238 claims
- Gabapentin158 claims
- Clonazepam96 claims
- Trazodone Hcl80 claims
- Buprenorphine Hcl63 claims
- Venlafaxine Hcl Er62 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 Notzon among 73 addiction psychiatry physician records in California
Daniel Notzon, M.D. is one of 73 addiction psychiatry physician records with a practice address in California. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 64% of them.
- NPI issued2009 · 64% of these records are older, 33% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 34% of these records are
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0802X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Addiction Psychiatry Physician providers in California
There are 73 addiction psychiatry physician records in California.
All 73 in California → Every provider in San Rafael → Addiction Psychiatry Physician nationwide →
The 8 addiction psychiatry physician records with the nearest ZIP codes
- Timmen Cermak, M.D.Mill Valley, CA 949411235341330
- Dale Dallas, MDFelton, CA 950181134207210
- Chinenye Okukpon, M.DSanta Clara, CA 950511134654775
- Daniel Saal, MDSanta Clara, CA 950511730267279
- William HarmonSanta Cruz, CA 950651194883314
- David Granovetter, MDSan Jose, CA 951191619053121
- William Mains, M.D.Oakland, CA 946051477751741
- Nagamani Padala, MDStockton, CA 952021659303253
Common questions
What is Daniel Notzon, M.D.'s NPI number?
Daniel Notzon, M.D.'s National Provider Identifier (NPI) is 1992949457, issued on Apr 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Notzon, M.D. located?
The NPPES record lists a practice address at 111 Smith Ranch RD, San Rafael, CA, 94903. Phone: (646) 783-2594. Providers update this record themselves, so call before visiting.
How can I verify Daniel Notzon, M.D.'s license?
NPPES lists California license number A143089, 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 Notzon, M.D. prescribe under Medicare Part D?
In 2024, Daniel Notzon, M.D. had 1,701 Medicare Part D claims for 117 beneficiaries; the average among addiction psychiatry physician prescribers was 716. 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.