2026 NPPES data Otolaryngology Physician NPI 1154718179
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Patrick Carpenter

Otolaryngology Physician in San Francisco, 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 10,895 in Otolaryngology 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
299
Medicare Part D claims · 106 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$87.94
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Patrick Carpenter filed 299 Medicare Part D claims in 2023 as a Otolaryngology Physician in San Francisco, California, prescribing 96% generic.

299
Part D claims, 2023
96%
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.

Patrick Carpenter's Medicare Part D volume vs every U.S. prescriber

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

299 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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. 2K+: 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)

Patrick Carpenter 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 Patrick Carpenter?

Quality data not reported

NPI registry status

Active

Issued 04/16/2015

NPI 1154718179

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

299 41% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in California

How Otolaryngology 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%Otolaryngology Physician - 0.1%Otolaryngology Physician0.1%
Largest specialties in California (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Otolaryngology Physician. Verify directly:

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).

Patrick Carpenter appears in the CMS NPPES registry as a Otolaryngology Physician provider at 2340 CLAY ST FL 5, San Francisco, CA, 94115, with a listed phone of (415) 600-0151. NPI 1154718179 was issued on 04/16/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Carpenter 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 299 prescription claims written by this provider, covering 106 Medicare beneficiaries and totaling roughly $5K in drug spend, split 4% brand-name and 96% 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.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

2340 CLAY ST FL 5
San Francisco, CA 94115

Provider Details

NPI 1154718179
Specialty Otolaryngology Physician
Gender Male
NPI Issued 04/16/2015

Hospital and facility affiliations

Facilities where Patrick Carpenter 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.

Sutter Bay Medical Foundation
San Francisco, 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 Patrick Carpenter. Source: openpaymentsdata.cms.gov.

Total received

$88

Largest payer

DePuy Synthes Sales Inc.

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 Patrick Carpenter. To verify Patrick Carpenter'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

Patrick Carpenter - brand share 4.0%
Otolaryngology Physician average

4% brand-name claims vs 96% generic, on 299 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.

299
Total Claims
$5K
Total Drug Cost
106
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
329
Total Day Supply
8,827
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$471
Generic Drug Cost
$4K
Antibiotic Claims
15

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
1.47
Gender Split
51% female / 49% male

Top Prescribed Drugs (Medicare Part D)

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

What Patrick Carpenter 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
Omeprazole
107
Pantoprazole Sodium
49
Azelastine Hcl
29
Fluticasone Propionate
22
Clobetasol Propionate
20
Fluconazole
17

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

Otolaryngology Physician Overview

How Patrick Carpenter fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

Patrick Carpenter's 299 claims are below the specialty average of 509.

Nearby Otolaryngology Physician Providers in California

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

Compare Otolaryngology 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 Otolaryngology 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 Patrick Carpenter's specialty?
Patrick Carpenter specializes in Otolaryngology Physician and practices in San Francisco, California.
How much does Patrick Carpenter prescribe under Medicare Part D?
In 2023, Patrick Carpenter wrote 299 Medicare Part D claims totaling $5K in drug costs for 106 beneficiaries.
Where is Patrick Carpenter located?
Patrick Carpenter is located at 2340 CLAY ST FL 5, San Francisco, CA, 94115. Phone: (415) 600-0151.
What is Patrick Carpenter's NPI number?
Patrick Carpenter's National Provider Identifier (NPI) is 1154718179, issued on 04/16/2015.
Does Patrick Carpenter prescribe more brand-name or generic drugs?
Patrick Carpenter's prescribing is 4% brand-name and 96% generic drugs by claim count, with $471 in brand drug costs.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does Patrick Carpenter prescribe most often?
Based on 2023 Medicare Part D data, Patrick Carpenter's most frequently prescribed drugs include Omeprazole, Pantoprazole Sodium, Azelastine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patrick Carpenter accept Medicare?
Patrick Carpenter appears in CMS Medicare data with 299 Part D claims and 106 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patrick Carpenter's credentials?
Patrick Carpenter's NPI is 1154718179. 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.