2026 NPPES data Colon & Rectal Surgery Physician NPI 1003992918 MD
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William Carveth, MD

Colon & Rectal Surgery Physician in Fresno, 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 1,608 in Colon & Rectal Surgery 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
290
Medicare Part D claims · 176 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
72.7/100
▼ 10 pts below national avg 83.1 · Mid-tier
Industry payments
$15.28
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

William Carveth, MD reported a CMS MIPS final score of 72.7/100 - below the 83.1 national average - and filed 290 Medicare Part D claims in 2023.

72.7/100
MIPS score · -10 vs avg
290
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.

William Carveth, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

73 10th percentile higher than 10% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where William Carveth, MD sits

This provider among colon & rectal surgery physician peers

Across the 536 colon & rectal surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, William Carveth, MD writes more Part D claims than 78% of them and scores higher on MIPS quality than 11% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 17Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90William Carveth, MD-Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 11
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one colon & rectal surgery physician peer from a representative sample of 60; the gold marker is William Carveth, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

William Carveth, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 William Carveth, MD?

Below national average

NPI registry status

Active

Issued 10/31/2006

NPI 1003992918

Primary specialty

Colon & Rectal Surgery Physician

Niche

1,608 US NPIs in this specialty

Medicare Part D claims

290 48% vs specialty avg

2023 prescription claims

Specialty avg: 196

MIPS final score

72.7/100 10.4 pts vs avg

Mid-tier band

vs 83.1 national avg

Specialty distribution in California

How Colon & Rectal Surgery 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%Colon & Rectal Surgery Physician - 0%Colon & Rectal Surgery Physician0%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

William Carveth, MD's 2023 MIPS final score plotted against the Colon & Rectal Surgery Physician national average

Below national average
MIPS Final Score
72.7/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Colon & Rectal Surgery Physician) - 72.7/100 vs national avg 83.1

0%100%National avg83%72.7%
MIPS final score (Colon & Rectal Surgery Physician) - 72.7/100 vs national avg 83.1

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).

William Carveth, MD appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding MD credentials at 6121 N THESTA, Fresno, CA, 93710, with a listed phone of (559) 440-0283. NPI 1003992918 was issued on 10/31/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Carveth 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 290 prescription claims written by this provider, covering 176 Medicare beneficiaries and totaling roughly $14K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 5.2%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 72.7/100 for the 2023 performance year (Quality 64.1), compared with the national average of 83.1.

Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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

6121 N THESTA
Fresno, CA 93710

Provider Details

NPI 1003992918
Specialty Colon & Rectal Surgery Physician
Credentials MD
Gender Male
NPI Issued 10/31/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

72.7396
Final Score
Avg: 83.1
64.145
Quality

Reporting: Group practice

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 William Carveth, MD. Source: openpaymentsdata.cms.gov.

Total received

$15

Largest payer

Axonics, 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 William Carveth, MD. To verify William Carveth, MD'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

William Carveth, MD - brand share 4.0%
Colon & Rectal Surgery Physician average

4% brand-name claims vs 96% generic, on 290 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.

290
Total Claims
$14K
Total Drug Cost
176
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
307
Total Day Supply
2,573
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$3K
Generic Drug Cost
$11K
Opioid Claims
15 (5.2% rate)
Antibiotic Claims
84

Patient Demographics

Average Patient Age
72.9 years
Avg HCC Risk Score
0.89
Gender Split
55% female / 45% male

Top Prescribed Drugs (Medicare Part D)

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

What William Carveth, MD 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
Vancomycin Hcl
52
Metronidazole
14
Mesalamine
12
Tramadol Hcl
11
Gavilyte-G
"Peg3350/Sod Sulf
N/A

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

Colon & Rectal Surgery Physician Overview

How William Carveth, MD fits within the Colon & Rectal Surgery Physician landscape nationally.

1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider

William Carveth, MD's 290 claims are above the specialty average of 196.

Nearby Colon & Rectal Surgery Physician Providers in California

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

Compare Colon & Rectal Surgery 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 Colon & Rectal Surgery 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 William Carveth, MD's specialty?
William Carveth, MD specializes in Colon & Rectal Surgery Physician and practices in Fresno, California. Credentials: MD.
How much does William Carveth, MD prescribe under Medicare Part D?
In 2023, William Carveth, MD wrote 290 Medicare Part D claims totaling $14K in drug costs for 176 beneficiaries.
What is William Carveth, MD's Medicare quality score?
William Carveth, MD has a CMS MIPS Final Score of 72.7/100 (Quality: 64.1). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is William Carveth, MD located?
William Carveth, MD is located at 6121 N THESTA, Fresno, CA, 93710. Phone: (559) 440-0283.
What is William Carveth, MD's NPI number?
William Carveth, MD's National Provider Identifier (NPI) is 1003992918, issued on 10/31/2006.
Does William Carveth, MD prescribe more brand-name or generic drugs?
William Carveth, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $3K in brand drug costs.
Does William Carveth, MD prescribe opioids?
Yes, William Carveth, MD had 15 opioid claims in 2023 with an opioid prescribing rate of 5.2%.
How many Colon & Rectal Surgery Physician providers are there in the US?
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does William Carveth, MD prescribe most often?
Based on 2023 Medicare Part D data, William Carveth, MD's most frequently prescribed drugs include Vancomycin Hcl, Metronidazole, Mesalamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does William Carveth, MD accept Medicare?
William Carveth, MD appears in CMS Medicare data with 290 Part D claims and 176 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify William Carveth, MD's credentials?
William Carveth, MD's NPI is 1003992918 with credentials MD. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.