2026 NPPES data Addiction Psychiatry Physician NPI 1124395421
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MICHAEL ZIZMOR

Addiction Psychiatry Physician in RICHMOND, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
672
Medicare Part D claims · 46 beneficiaries · Addiction Psychiatry Physician avg: 792
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MICHAEL ZIZMOR filed 672 Medicare Part D claims in 2023 as a Addiction Psychiatry Physician in RICHMOND, California, prescribing 93% generic.

672
Part D claims, 2023
93%
generic prescribing
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

MICHAEL ZIZMOR's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

672 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

MICHAEL ZIZMOR practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MICHAEL ZIZMOR?

Quality data not reported

NPI registry status

Active

Issued 11/30/2011

NPI 1124395421

Primary specialty

Addiction Psychiatry Physician

Niche

667 US NPIs in this specialty

Medicare Part D claims

672 15% vs specialty avg

2023 prescription claims

Specialty avg: 792

Specialty distribution in California

How Addiction Psychiatry Physician compares to other specialties among California providers

California providers

Addiction Psychiatry Physician share within California

1. Addiction Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Psychiatry Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Psychiatry Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MICHAEL ZIZMOR appears in the CMS NPPES registry as a Addiction Psychiatry Physician provider at 2831 MACDONALD AVE, RICHMOND, CA, 94804, with a listed phone of (510) 236-5340. NPI 1124395421 was issued on 11/30/2011. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ZIZMOR most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 672 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $48K in drug spend, split 7% brand-name and 93% generic by claim count, with an opioid prescribing rate of 9.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Addiction Psychiatry Physician is a narrow specialty nationwide, with 667 enrolled providers across 49 states and an average of 792 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2831 MACDONALD AVE
RICHMOND, CA 94804

Provider Details

NPI 1124395421
Specialty Addiction Psychiatry Physician
Gender Male
NPI Issued 11/30/2011

Hospital and facility affiliations

Facilities where MICHAEL ZIZMOR bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

VITAL TOTAL HEALTH MEDICAL GROUP INC
WALNUT CREEK, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to MICHAEL ZIZMOR. To verify MICHAEL ZIZMOR's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

MICHAEL ZIZMOR — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 672 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

672
Total Claims
$48K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
704
Total Day Supply
20,125
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$24K
Generic Drug Cost
$23K
Opioid Claims
62 (9.2% rate)

Patient Demographics

Average Patient Age
60.6 years
Avg HCC Risk Score
1.45
Gender Split
76% female / 24% male
Age Distribution
<65: 21, 65-74: 23, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MICHAEL ZIZMOR prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Clonazepam
72
Dextroamphetamine-Amphetamine
Dextroamphetamine/Amphetamine
60
Lorazepam
49
Trazodone Hcl
42
Dextroamphetamine-Amphet Er
Dextroamphetamine/Amphetamine
32
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
31
Quetiapine Fumarate
31
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
25
Escitalopram Oxalate
25
Baclofen
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Addiction Psychiatry Physician Overview

How MICHAEL ZIZMOR fits within the Addiction Psychiatry Physician landscape nationally.

667
Addiction Psychiatry Physician Providers in US
49
States with Addiction Psychiatry Physician
792
Avg Claims per Provider

MICHAEL ZIZMOR's 672 claims are below the specialty average of 792.

Nearby Addiction Psychiatry Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as ZIZMOR.

Compare Addiction Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL ZIZMOR's specialty?
MICHAEL ZIZMOR specializes in Addiction Psychiatry Physician and practices in RICHMOND, California.
How much does MICHAEL ZIZMOR prescribe under Medicare Part D?
In 2023, MICHAEL ZIZMOR wrote 672 Medicare Part D claims totaling $48K in drug costs for 46 beneficiaries.
Where is MICHAEL ZIZMOR located?
MICHAEL ZIZMOR is located at 2831 MACDONALD AVE, RICHMOND, CA, 94804. Phone: (510) 236-5340.
What is MICHAEL ZIZMOR's NPI number?
MICHAEL ZIZMOR's National Provider Identifier (NPI) is 1124395421, issued on 11/30/2011.
Does MICHAEL ZIZMOR prescribe more brand-name or generic drugs?
MICHAEL ZIZMOR's prescribing is 7% brand-name and 93% generic drugs by claim count, with $24K in brand drug costs.
Does MICHAEL ZIZMOR prescribe opioids?
Yes, MICHAEL ZIZMOR had 62 opioid claims in 2023 with an opioid prescribing rate of 9.2%.
How many Addiction Psychiatry Physician providers are there in the US?
There are 667 Addiction Psychiatry Physician providers across 49 states in the US. The average Addiction Psychiatry Physician provider writes 792 Medicare Part D claims per year.
What drugs does MICHAEL ZIZMOR prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL ZIZMOR's most frequently prescribed drugs include Clonazepam, Dextroamphetamine-Amphetamine, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL ZIZMOR accept Medicare?
MICHAEL ZIZMOR appears in CMS Medicare data with 672 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL ZIZMOR's credentials?
MICHAEL ZIZMOR's NPI is 1124395421. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology