2026 NPPES data Specialist NPI 1386136174 MD, MPH
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CLAYTON BISHOP, MD, MPH

Specialist in CORPUS CHRISTI, Texas. 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
293
Medicare Part D claims · 130 beneficiaries · Specialist avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$866.93
24 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CLAYTON BISHOP, MD, MPH filed 293 Medicare Part D claims in 2023 as a Specialist in CORPUS CHRISTI, Texas, prescribing 95% generic.

293
Part D claims, 2023
95%
generic prescribing
$866.93
industry payments (Sunshine Act)

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.

CLAYTON BISHOP, MD, MPH's Medicare Part D volume vs every U.S. prescriber

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

293 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. 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

What does the federal data show about CLAYTON BISHOP, MD, MPH?

Quality data not reported

NPI registry status

Active

Issued 06/06/2018

NPI 1386136174

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

293 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Texas

How Specialist compares to other specialties among Texas providers

Texas providers

Specialist share within Texas

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Texas

Specialty board-certification context

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

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

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

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

CLAYTON BISHOP, MD, MPH appears in the CMS NPPES registry as a Specialist provider holding MD, MPH credentials at 5959 S STAPLES ST, CORPUS CHRISTI, TX, 78413, with a listed phone of (361) 854-7000. NPI 1386136174 was issued on 06/06/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BISHOP 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 293 prescription claims written by this provider, covering 130 Medicare beneficiaries and totaling roughly $14K in drug spend, split 5% brand-name and 95% 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

5959 S STAPLES ST
CORPUS CHRISTI, TX 78413

Provider Details

NPI 1386136174
Specialty Specialist
Credentials MD, MPH
Gender Male
NPI Issued 06/06/2018

Hospital and facility affiliations

Facilities where CLAYTON BISHOP, MD, MPH 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.

EAR, NOSE AND THROAT ASSOCIATES OF CORPUS CHRISTI
CORPUS CHRISTI, TX
SHEA PHYSICAL THERAPY SPECIALISTS LLC
CORPUS CHRISTI, TX

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 CLAYTON BISHOP, MD, MPH. Source: openpaymentsdata.cms.gov.

Total received

$867

Largest payer

AERIN MEDICAL 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 — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to CLAYTON BISHOP, MD, MPH. To verify CLAYTON BISHOP, MD, MPH's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

CLAYTON BISHOP, MD, MPH — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 293 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.

293
Total Claims
$14K
Total Drug Cost
130
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
425
Total Day Supply
10,797
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$6K
Generic Drug Cost
$8K
Antibiotic Claims
22

Patient Demographics

Average Patient Age
72.2 years
Avg HCC Risk Score
1.52
Gender Split
50% female / 50% male

Top Prescribed Drugs (Medicare Part D)

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

What CLAYTON BISHOP, MD, MPH 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
Famotidine
51
Fluticasone Propionate
51
Ipratropium Bromide
30
Gabapentin
15
Ofloxacin
15
Azelastine Hcl
14

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

Specialist Overview

How CLAYTON BISHOP, MD, MPH fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

CLAYTON BISHOP, MD, MPH's 293 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Texas

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is CLAYTON BISHOP, MD, MPH's specialty?
CLAYTON BISHOP, MD, MPH specializes in Specialist and practices in CORPUS CHRISTI, Texas. Credentials: MD, MPH.
How much does CLAYTON BISHOP, MD, MPH prescribe under Medicare Part D?
In 2023, CLAYTON BISHOP, MD, MPH wrote 293 Medicare Part D claims totaling $14K in drug costs for 130 beneficiaries.
Where is CLAYTON BISHOP, MD, MPH located?
CLAYTON BISHOP, MD, MPH is located at 5959 S STAPLES ST, CORPUS CHRISTI, TX, 78413. Phone: (361) 854-7000.
What is CLAYTON BISHOP, MD, MPH's NPI number?
CLAYTON BISHOP, MD, MPH's National Provider Identifier (NPI) is 1386136174, issued on 06/06/2018.
Does CLAYTON BISHOP, MD, MPH prescribe more brand-name or generic drugs?
CLAYTON BISHOP, MD, MPH's prescribing is 5% brand-name and 95% generic drugs by claim count, with $6K in brand drug costs.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does CLAYTON BISHOP, MD, MPH prescribe most often?
Based on 2023 Medicare Part D data, CLAYTON BISHOP, MD, MPH's most frequently prescribed drugs include Famotidine, Fluticasone Propionate, Ipratropium Bromide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CLAYTON BISHOP, MD, MPH accept Medicare?
CLAYTON BISHOP, MD, MPH appears in CMS Medicare data with 293 Part D claims and 130 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CLAYTON BISHOP, MD, MPH's credentials?
CLAYTON BISHOP, MD, MPH's NPI is 1386136174 with credentials MD, MPH. 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