2026 NPPES data Otolaryngology Physician NPI 1376506642 MD PHD
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KEITH CLARK, MD PHD

Otolaryngology Physician in OKLAHOMA CITY, Oklahoma. 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
387
Medicare Part D claims · 154 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
85.7051/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$27.55
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KEITH CLARK, MD PHD is a Otolaryngology Physician ([object Object]) practicing in OKLAHOMA CITY, Oklahoma with a Medicare Part D prescribing footprint of 387 claims across 154 beneficiaries — 3% brand-name prescribing . Their CMS MIPS Final Score of 85.7051/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $27.55 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KEITH CLARK, MD PHD reported a CMS MIPS final score of 85.7051 out of 100, above the 83.1 national average, and filed 387 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KEITH CLARK, MD PHD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

KEITH CLARK, MD PHD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/08/2006

NPI 1376506642

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

387 24% vs specialty avg

2023 prescription claims

Specialty avg: 509

MIPS final score

85.7051/100 2.6051000000000073% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oklahoma

How Otolaryngology Physician compares to other specialties among Oklahoma providers

Oklahoma providers

Otolaryngology Physician share within Oklahoma

1. Otolaryngology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Otolaryngology Physician share within Oklahoma

Medicare quality performance — MIPS

KEITH CLARK, MD PHD's 2023 MIPS final score plotted against the Otolaryngology Physician national average

High performer (top quartile)
MIPS Final Score
85.7051/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Otolaryngology Physician) — 85.7051/100 vs national avg 83.1

0%100%National avg83%85.7%
MIPS final score (Otolaryngology Physician) — 85.7051/100 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).

KEITH CLARK, MD PHD is a Otolaryngology Physician provider practicing in OKLAHOMA CITY, Oklahoma, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD PHD. NPI: 1376506642. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

KEITH CLARK, MD PHD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD PHD credentials at 535 NW 9TH ST, OKLAHOMA CITY, OK, 73102, with a listed phone of (405) 272-6027. NPI 1376506642 was issued on 04/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARK 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 387 prescription claims written by this provider, covering 154 Medicare beneficiaries and totaling roughly $7K in drug spend, split 3% brand-name and 97% generic by claim count, with an opioid prescribing rate of 15.5%. 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 85.7051/100 for the 2023 performance year (Quality 90.3347, Cost 62.0157), compared with the national average of 83.1.

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

535 NW 9TH ST
OKLAHOMA CITY, OK 73102

Provider Details

NPI 1376506642
Specialty Otolaryngology Physician
Credentials MD PHD
Gender Male
NPI Issued 04/08/2006

CMS Quality Score (MIPS)

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

85.7051
Final Score
Avg: 83.1
90.3347
Quality
62.0157
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where KEITH CLARK, MD PHD 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.

SAINTS MEDICAL GROUP, LLC
OKLAHOMA CITY, OK

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 KEITH CLARK, MD PHD. Source: openpaymentsdata.cms.gov.

Total received

$28

Largest payer

Integra LifeSciences 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.

Brand vs generic prescribing mix · Generic-heavy

KEITH CLARK, MD PHD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 387 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.

387
Total Claims
$7K
Total Drug Cost
154
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
473
Total Day Supply
10,074
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$394
Generic Drug Cost
$6K
Opioid Claims
60 (15.5% rate)
Antibiotic Claims
66

Patient Demographics

Average Patient Age
70.4 years
Avg HCC Risk Score
1.56
Gender Split
58% female / 42% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
127
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
40
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
34
Ipratropium Bromide
23
Diazepam
21
Methylprednisolone
16

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

Otolaryngology Physician Overview

How KEITH CLARK, MD PHD fits within the Otolaryngology Physician landscape nationally.

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

KEITH CLARK, MD PHD's 387 claims are below the specialty average of 509.

Nearby Otolaryngology Physician Providers in Oklahoma

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

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

Frequently Asked Questions

What is KEITH CLARK, MD PHD's specialty?
KEITH CLARK, MD PHD specializes in Otolaryngology Physician and practices in OKLAHOMA CITY, Oklahoma. Credentials: MD PHD.
How much does KEITH CLARK, MD PHD prescribe under Medicare Part D?
In 2023, KEITH CLARK, MD PHD wrote 387 Medicare Part D claims totaling $7K in drug costs for 154 beneficiaries.
What is KEITH CLARK, MD PHD's Medicare quality score?
KEITH CLARK, MD PHD has a CMS MIPS Final Score of 85.7051/100 (Quality: 90.3347, Cost: 62.0157). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KEITH CLARK, MD PHD located?
KEITH CLARK, MD PHD is located at 535 NW 9TH ST, OKLAHOMA CITY, OK, 73102. Phone: (405) 272-6027.
What is KEITH CLARK, MD PHD's NPI number?
KEITH CLARK, MD PHD's National Provider Identifier (NPI) is 1376506642, issued on 04/08/2006.
Does KEITH CLARK, MD PHD prescribe more brand-name or generic drugs?
KEITH CLARK, MD PHD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $394 in brand drug costs.
Does KEITH CLARK, MD PHD prescribe opioids?
Yes, KEITH CLARK, MD PHD had 60 opioid claims in 2023 with an opioid prescribing rate of 15.5%.
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 KEITH CLARK, MD PHD prescribe most often?
Based on 2023 Medicare Part D data, KEITH CLARK, MD PHD's most frequently prescribed drugs include Gabapentin, Hydrocodone-Acetaminophen, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KEITH CLARK, MD PHD accept Medicare?
KEITH CLARK, MD PHD appears in CMS Medicare data with 387 Part D claims and 154 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KEITH CLARK, MD PHD's credentials?
KEITH CLARK, MD PHD's NPI is 1376506642 with credentials MD PHD. 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