2026 NPPES data Neuromusculoskeletal Medicine & OMM Physician NPI 1639177355 M.D
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SAN WIN, M.D

Neuromusculoskeletal Medicine & OMM Physician in SAN FRANCISCO, 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 · 238 beneficiaries · Neuromusculoskeletal Medicine & OMM Physician avg: 1K

What the federal data shows

SAN WIN, M.D filed 2,134 Medicare Part D claims in 2023 as a Neuromusculoskeletal Medicine & OMM Physician in SAN FRANCISCO, California.

2K
Part D claims, 2023

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.

SAN WIN, M.D's Medicare Part D volume vs every U.S. prescriber

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

2,134 Top 15% higher than 85% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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-eligible specialty (heuristic — not verified)

SAN WIN, M.D practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about SAN WIN, M.D?

Quality data not reported

NPI registry status

Active

Issued 07/07/2005

NPI 1639177355

Primary specialty

Neuromusculoskeletal Medicine & OMM Physician

Niche

1,235 US NPIs in this specialty

Medicare Part D claims

2,134 93% vs specialty avg

2023 prescription claims

Specialty avg: 1,107

Specialty distribution in California

How Neuromusculoskeletal Medicine & OMM Physician compares to other specialties among California providers

California providers

Neuromusculoskeletal Medicine & OMM Physician share within California

1. Neuromusculoskeletal Medicine & OMM Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neuromusculoskeletal Medicine & OMM Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Neuromusculoskeletal Medicine & OMM Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Neuromusculoskeletal Medicine & OMM Physician ABMS/AOA estimate

Est. board-certified rate (Neuromusculoskeletal Medicine & OMM Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Neuromusculoskeletal Medicine & OMM 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).

SAN WIN, M.D appears in the CMS NPPES registry as a Neuromusculoskeletal Medicine & OMM Physician provider holding M.D credentials at 1441 POWELL ST, SAN FRANCISCO, CA, 94133, with a listed phone of (415) 292-8650. NPI 1639177355 was issued on 07/07/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WIN 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 2,134 prescription claims written by this provider, covering 238 Medicare beneficiaries and totaling roughly $137K in drug spend, with an opioid prescribing rate of 4.8%. 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.

Neuromusculoskeletal Medicine & OMM Physician is a narrow specialty nationwide, with 1,235 enrolled providers across 51 states and an average of 1,107 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

1441 POWELL ST
SAN FRANCISCO, CA 94133

Provider Details

NPI 1639177355
Specialty Neuromusculoskeletal Medicine & OMM Physician
Credentials M.D
Gender Female
NPI Issued 07/07/2005

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 SAN WIN, M.D. To verify SAN WIN, M.D'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.

Medicare Part D Prescribing Data

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

2,134
Total Claims
$137K
Total Drug Cost
238
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,728
Total Day Supply
63,231
Generic Drug Cost
$49K
Opioid Claims
103 (4.8% rate)
Antibiotic Claims
38

Patient Demographics

Average Patient Age
79.3 years
Avg HCC Risk Score
2.63
Gender Split
60% female / 40% male

Top Prescribed Drugs (Medicare Part D)

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

What SAN WIN, M.D 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
Atorvastatin Calcium
159
Gabapentin
118
Furosemide
75
Hydralazine Hcl
64
Metoprolol Tartrate
57
Levothyroxine Sodium
55
Tamsulosin Hcl
53
Amlodipine Besylate
52
Lisinopril
48
Losartan Potassium
46

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

Neuromusculoskeletal Medicine & OMM Physician Overview

How SAN WIN, M.D fits within the Neuromusculoskeletal Medicine & OMM Physician landscape nationally.

1,235
Neuromusculoskeletal Medicine & OMM Physician Providers in US
51
States with Neuromusculoskeletal Medicine & OMM Physician
1,107
Avg Claims per Provider

SAN WIN, M.D's 2,134 claims are above the specialty average of 1,107.

Nearby Neuromusculoskeletal Medicine & OMM Physician Providers in California

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

Compare Neuromusculoskeletal Medicine & OMM Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAN WIN, M.D's specialty?
SAN WIN, M.D specializes in Neuromusculoskeletal Medicine & OMM Physician and practices in SAN FRANCISCO, California. Credentials: M.D.
How much does SAN WIN, M.D prescribe under Medicare Part D?
In 2023, SAN WIN, M.D wrote 2,134 Medicare Part D claims totaling $137K in drug costs for 238 beneficiaries.
Where is SAN WIN, M.D located?
SAN WIN, M.D is located at 1441 POWELL ST, SAN FRANCISCO, CA, 94133. Phone: (415) 292-8650.
What is SAN WIN, M.D's NPI number?
SAN WIN, M.D's National Provider Identifier (NPI) is 1639177355, issued on 07/07/2005.
Does SAN WIN, M.D prescribe opioids?
Yes, SAN WIN, M.D had 103 opioid claims in 2023 with an opioid prescribing rate of 4.8%.
How many Neuromusculoskeletal Medicine & OMM Physician providers are there in the US?
There are 1,235 Neuromusculoskeletal Medicine & OMM Physician providers across 51 states in the US. The average Neuromusculoskeletal Medicine & OMM Physician provider writes 1,107 Medicare Part D claims per year.
What drugs does SAN WIN, M.D prescribe most often?
Based on 2023 Medicare Part D data, SAN WIN, M.D's most frequently prescribed drugs include Atorvastatin Calcium, Gabapentin, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAN WIN, M.D accept Medicare?
SAN WIN, M.D appears in CMS Medicare data with 2,134 Part D claims and 238 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAN WIN, M.D's credentials?
SAN WIN, M.D's NPI is 1639177355 with credentials M.D. 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