2026 NPPES data Pain Medicine (Physical Medicine & Rehabilitation) Physician NPI 1124120845 M.D.
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HOYMAN HONG, M.D.

Pain Medicine (Physical Medicine & Rehabilitation) Physician in SAN MATEO, 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 · 155 beneficiaries · Pain Medicine (Physical Medicine & Rehabilitation) Physician avg: 1K
Industry payments
$547.94
18 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

HOYMAN HONG, M.D. filed 1,561 Medicare Part D claims in 2023 as a Pain Medicine (Physical Medicine & Rehabilitation) Physician in SAN MATEO, California.

2K
Part D claims, 2023
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.

HOYMAN HONG, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,561 Top 19% higher than 81% 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%). This entry sits in this band. 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)

HOYMAN HONG, M.D. 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 HOYMAN HONG, M.D.?

Quality data not reported

NPI registry status

Active

Issued 09/02/2006

NPI 1124120845

Primary specialty

Pain Medicine (Physical Medicine & Rehabilitation) Physician

Niche

1,626 US NPIs in this specialty

Medicare Part D claims

1,561 11% vs specialty avg

2023 prescription claims

Specialty avg: 1,401

Specialty distribution in California

How Pain Medicine (Physical Medicine & Rehabilitation) Physician compares to other specialties among California providers

California providers

Pain Medicine (Physical Medicine & Rehabilitation) Physician share within California

1. Pain Medicine (Physical Medicine & Rehabilitation) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Pain Medicine (Physical Medicine & Rehabilitation) Physician share within California

Specialty board-certification context

Estimated specialty board-certified rate — Pain Medicine (Physical Medicine & Rehabilitation) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Pain Medicine (Physical Medicine & Rehabilitation) Physician ABMS/AOA estimate

Est. board-certified rate (Pain Medicine (Physical Medicine & Rehabilitation) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Pain Medicine (Physical Medicine & Rehabilitation) 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).

HOYMAN HONG, M.D. appears in the CMS NPPES registry as a Pain Medicine (Physical Medicine & Rehabilitation) Physician provider holding M.D. credentials at 34 N SAN MATEO DR STE 2, SAN MATEO, CA, 94401, with a listed phone of (650) 513-6651. NPI 1124120845 was issued on 09/02/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HONG 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 1,561 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $219K in drug spend, with an opioid prescribing rate of 56.2%. 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.

Pain Medicine (Physical Medicine & Rehabilitation) Physician is a narrow specialty nationwide, with 1,626 enrolled providers across 50 states and an average of 1,401 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

34 N SAN MATEO DR STE 2
SAN MATEO, CA 94401

Provider Details

NPI 1124120845
Specialty Pain Medicine (Physical Medicine & Rehabilitation) Physician
Credentials M.D.
Gender Male
NPI Issued 09/02/2006

Hospital and facility affiliations

Facilities where HOYMAN HONG, M.D. 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.

HOYMAN HONG, MD A PROF MED CORP
SAN MATEO, CA
SUTTER BAY MEDICAL FOUNDATION
SAN MATEO, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for HOYMAN HONG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$548

Largest payer

Stryker Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 HOYMAN HONG, M.D.. To verify HOYMAN HONG, 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.

1,561
Total Claims
$219K
Total Drug Cost
155
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,838
Total Day Supply
50,147
Generic Drug Cost
$59K
Opioid Claims
877 (56.2% rate)

Patient Demographics

Average Patient Age
74.3 years
Avg HCC Risk Score
1.10
Gender Split
63% female / 37% male
Age Distribution
<65: 14, 65-74: 67, 75-84: 57, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What HOYMAN HONG, 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
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
325
Gabapentin
150
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
78
Pregabalin
71
Oxycodone Hcl
70
Buprenorphine
65
Meloxicam
64
Morphine Sulfate Er
Morphine Sulfate
64
Cyclobenzaprine Hcl
58
Fentanyl
55

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

Pain Medicine (Physical Medicine & Rehabilitation) Physician Overview

How HOYMAN HONG, M.D. fits within the Pain Medicine (Physical Medicine & Rehabilitation) Physician landscape nationally.

1,626
Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in US
50
States with Pain Medicine (Physical Medicine & Rehabilitation) Physician
1,401
Avg Claims per Provider

HOYMAN HONG, M.D.'s 1,561 claims are above the specialty average of 1,401.

Nearby Pain Medicine (Physical Medicine & Rehabilitation) Physician Providers in California

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

Compare Pain Medicine (Physical Medicine & Rehabilitation) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is HOYMAN HONG, M.D.'s specialty?
HOYMAN HONG, M.D. specializes in Pain Medicine (Physical Medicine & Rehabilitation) Physician and practices in SAN MATEO, California. Credentials: M.D..
How much does HOYMAN HONG, M.D. prescribe under Medicare Part D?
In 2023, HOYMAN HONG, M.D. wrote 1,561 Medicare Part D claims totaling $219K in drug costs for 155 beneficiaries.
Where is HOYMAN HONG, M.D. located?
HOYMAN HONG, M.D. is located at 34 N SAN MATEO DR STE 2, SAN MATEO, CA, 94401. Phone: (650) 513-6651.
What is HOYMAN HONG, M.D.'s NPI number?
HOYMAN HONG, M.D.'s National Provider Identifier (NPI) is 1124120845, issued on 09/02/2006.
Does HOYMAN HONG, M.D. prescribe opioids?
Yes, HOYMAN HONG, M.D. had 877 opioid claims in 2023 with an opioid prescribing rate of 56.2%.
How many Pain Medicine (Physical Medicine & Rehabilitation) Physician providers are there in the US?
There are 1,626 Pain Medicine (Physical Medicine & Rehabilitation) Physician providers across 50 states in the US. The average Pain Medicine (Physical Medicine & Rehabilitation) Physician provider writes 1,401 Medicare Part D claims per year.
What drugs does HOYMAN HONG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, HOYMAN HONG, M.D.'s most frequently prescribed drugs include Hydrocodone-Acetaminophen, Gabapentin, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HOYMAN HONG, M.D. accept Medicare?
HOYMAN HONG, M.D. appears in CMS Medicare data with 1,561 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HOYMAN HONG, M.D.'s credentials?
HOYMAN HONG, M.D.'s NPI is 1124120845 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