2026 NPPES data Anesthesiology Physician NPI 1033351382 D.O
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Francis Wong, D.O

Anesthesiology Physician in San Jose, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 56,398 in Anesthesiology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
2K
Medicare Part D claims · 645 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Francis Wong, D.O filed 2,252 Medicare Part D claims in 2023 as a Anesthesiology Physician in San Jose, California, prescribing 87% generic.

2K
Part D claims, 2023
87%
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.

Francis Wong, D.O's Medicare Part D volume vs every U.S. prescriber

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

2,252 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 certification likely (heuristic — not verified)

Francis Wong, D.O practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — 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 Francis Wong, D.O?

Quality data not reported

NPI registry status

Active

Issued 04/01/2009

NPI 1033351382

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

2,252 162% vs specialty avg

2023 prescription claims

Specialty avg: 860

Specialty distribution in California

How Anesthesiology Physician compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Anesthesiology Physician — 0.8%Anesthesiology Physician0.8%
Largest specialties in California (% of in-state providers)

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Anesthesiology 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).

Francis Wong, D.O appears in the CMS NPPES registry as a Anesthesiology Physician provider holding D.O credentials at 250 HOSPITAL PKWY, San Jose, CA, 95119, with a listed phone of (408) 972-3000. NPI 1033351382 was issued on 04/01/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Wong 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 2,252 prescription claims written by this provider, covering 645 Medicare beneficiaries and totaling roughly $278K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 64.6%. 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.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 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

250 HOSPITAL PKWY
San Jose, CA 95119

Provider Details

NPI 1033351382
Specialty Anesthesiology Physician
Credentials D.O
Gender Male
NPI Issued 04/01/2009

Hospital and facility affiliations

Facilities where Francis Wong, D.O 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
San Jose, CA
Sutter Bay Medical Foundation
Mountain View, 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 Francis Wong, D.O. To verify Francis Wong, D.O'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 · Typical

Francis Wong, D.O — brand share 13.0%
Anesthesiology Physician average

13% brand-name claims vs 87% generic, on 2,252 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.

2,252
Total Claims
$278K
Total Drug Cost
645
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,486
Total Day Supply
69,753
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$143K
Generic Drug Cost
$135K
Opioid Claims
1,454 (64.6% rate)

Patient Demographics

Average Patient Age
71.2 years
Avg HCC Risk Score
1.51
Gender Split
67% female / 33% male
Age Distribution
<65: 131, 65-74: 274, 75-84: 171, 85+: 69

Top Prescribed Drugs (Medicare Part D)

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

What Francis Wong, D.O 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
378
Buprenorphine
314
Oxycodone Hcl
165
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
129
Gabapentin
121
Buprenorphine Hcl
118
Pregabalin
99
Tramadol Hcl
96
Morphine Sulfate Er
Morphine Sulfate
76
Cyclobenzaprine Hcl
72

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

Anesthesiology Physician Overview

How Francis Wong, D.O fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

Francis Wong, D.O's 2,252 claims are above the specialty average of 860.

Nearby Anesthesiology Physician Providers in California

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

Compare Anesthesiology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Anesthesiology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Francis Wong, D.O's specialty?
Francis Wong, D.O specializes in Anesthesiology Physician and practices in San Jose, California. Credentials: D.O.
How much does Francis Wong, D.O prescribe under Medicare Part D?
In 2023, Francis Wong, D.O wrote 2,252 Medicare Part D claims totaling $278K in drug costs for 645 beneficiaries.
Where is Francis Wong, D.O located?
Francis Wong, D.O is located at 250 HOSPITAL PKWY, San Jose, CA, 95119. Phone: (408) 972-3000.
What is Francis Wong, D.O's NPI number?
Francis Wong, D.O's National Provider Identifier (NPI) is 1033351382, issued on 04/01/2009.
Does Francis Wong, D.O prescribe more brand-name or generic drugs?
Francis Wong, D.O's prescribing is 13% brand-name and 87% generic drugs by claim count, with $143K in brand drug costs.
Does Francis Wong, D.O prescribe opioids?
Yes, Francis Wong, D.O had 1,454 opioid claims in 2023 with an opioid prescribing rate of 64.6%.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Francis Wong, D.O prescribe most often?
Based on 2023 Medicare Part D data, Francis Wong, D.O's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Buprenorphine, Oxycodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Francis Wong, D.O accept Medicare?
Francis Wong, D.O appears in CMS Medicare data with 2,252 Part D claims and 645 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Francis Wong, D.O's credentials?
Francis Wong, D.O's NPI is 1033351382 with credentials D.O. 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

Compiled from official public sources by the PlainDoctor editorial team.