2026 NPPES data Addiction Psychiatry Physician NPI 1053798629
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ASFAND KHAN

Addiction Psychiatry Physician in SAN RAFAEL, 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
2K
Medicare Part D claims · 253 beneficiaries · Addiction Psychiatry Physician avg: 792
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: ASFAND KHAN is a Addiction Psychiatry Physician ([object Object]) practicing in SAN RAFAEL, California with a Medicare Part D prescribing footprint of 2K claims across 253 beneficiaries — 5% brand-name prescribing .

What stands out: ASFAND KHAN filed 1,551 Medicare Part D claims in 2023 across SAN RAFAEL, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ASFAND KHAN 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).

ASFAND KHAN at a glance

Quality data not reported

NPI registry status

Active

Issued 05/02/2015

NPI 1053798629

Primary specialty

Addiction Psychiatry Physician

Niche

667 US NPIs in this specialty

Medicare Part D claims

1,551 96% 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).

ASFAND KHAN is a Addiction Psychiatry Physician provider practicing in SAN RAFAEL, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1053798629. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ASFAND KHAN appears in the CMS NPPES registry as a Addiction Psychiatry Physician provider at 111 SMITH RANCH RD, SAN RAFAEL, CA, 94903, with a listed phone of (415) 491-3000. NPI 1053798629 was issued on 05/02/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KHAN 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 1,551 prescription claims written by this provider, covering 253 Medicare beneficiaries and totaling roughly $91K in drug spend, split 5% brand-name and 95% generic by claim count. 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

111 SMITH RANCH RD
SAN RAFAEL, CA 94903

Provider Details

NPI 1053798629
Specialty Addiction Psychiatry Physician
Gender Male
NPI Issued 05/02/2015

Hospital and facility affiliations

Facilities where ASFAND KHAN 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.

PERMANENTE MEDICAL GROUP INC
SANTA ROSA, 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 ASFAND KHAN. To verify ASFAND KHAN'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

ASFAND KHAN — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 1,551 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.

1,551
Total Claims
$91K
Total Drug Cost
253
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,677
Total Day Supply
78,073
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$33K
Generic Drug Cost
$58K

Patient Demographics

Average Patient Age
66.8 years
Avg HCC Risk Score
1.38
Gender Split
62% female / 38% male
Age Distribution
<65: 61, 65-74: 133, 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.

Drug Claims
Lorazepam
155
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
121
Mirtazapine
99
Sertraline Hcl
85
Trazodone Hcl
82
Gabapentin
80
Clonazepam
63
Quetiapine Fumarate
53
Venlafaxine Hcl Er
Venlafaxine Hcl
49
Duloxetine Hcl
43

* 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 ASFAND KHAN 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

ASFAND KHAN's 1,551 claims are above 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 KHAN.

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

Frequently Asked Questions

What is ASFAND KHAN's specialty?
ASFAND KHAN specializes in Addiction Psychiatry Physician and practices in SAN RAFAEL, California.
How much does ASFAND KHAN prescribe under Medicare Part D?
In 2023, ASFAND KHAN wrote 1,551 Medicare Part D claims totaling $91K in drug costs for 253 beneficiaries.
Where is ASFAND KHAN located?
ASFAND KHAN is located at 111 SMITH RANCH RD, SAN RAFAEL, CA, 94903. Phone: (415) 491-3000.
What is ASFAND KHAN's NPI number?
ASFAND KHAN's National Provider Identifier (NPI) is 1053798629, issued on 05/02/2015.
Does ASFAND KHAN prescribe more brand-name or generic drugs?
ASFAND KHAN's prescribing is 5% brand-name and 95% generic drugs by claim count, with $33K in brand drug costs.
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 ASFAND KHAN prescribe most often?
Based on 2023 Medicare Part D data, ASFAND KHAN's most frequently prescribed drugs include Lorazepam, Buprenorphine-Naloxone, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ASFAND KHAN accept Medicare?
ASFAND KHAN appears in CMS Medicare data with 1,551 Part D claims and 253 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ASFAND KHAN's credentials?
ASFAND KHAN's NPI is 1053798629. 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