2026 NPPES data Surgery Physician NPI 1366732729 M.D.
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KATELYN CLARK, M.D.

Surgery Physician in SPRINGFIELD, Oregon. 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
303
Medicare Part D claims · 134 beneficiaries · Surgery Physician avg: 169
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$980.22
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: KATELYN CLARK, M.D. is a Surgery Physician ([object Object]) practicing in SPRINGFIELD, Oregon with a Medicare Part D prescribing footprint of 303 claims across 134 beneficiaries — 5% brand-name prescribing . Industry payments of $980.22 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: KATELYN CLARK, M.D. filed 303 Medicare Part D claims in 2023 across SPRINGFIELD, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KATELYN CLARK, 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).

KATELYN CLARK, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/19/2011

NPI 1366732729

Primary specialty

Surgery Physician

Mid-sized

36,191 US NPIs in this specialty

Medicare Part D claims

303 79% vs specialty avg

2023 prescription claims

Specialty avg: 169

Specialty distribution in Oregon

How Surgery Physician compares to other specialties among Oregon providers

Oregon providers

Surgery Physician share within Oregon

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

Specialty board-certification context

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

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

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

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

KATELYN CLARK, M.D. is a Surgery Physician provider practicing in SPRINGFIELD, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1366732729. 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.

KATELYN CLARK, M.D. appears in the CMS NPPES registry as a Surgery Physician provider holding M.D. credentials at PEACEHEALTH SURGICAL SPECIALTIES, SPRINGFIELD, OR, 97477, with a listed phone of (541) 222-8333. NPI 1366732729 was issued on 04/19/2011. 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 303 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $7K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 38.0%. 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.

Surgery Physician is a mid-sized specialty nationwide, with 36,191 enrolled providers across 56 states and an average of 169 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

PEACEHEALTH SURGICAL SPECIALTIES
SPRINGFIELD, OR 97477

Provider Details

NPI 1366732729
Specialty Surgery Physician
Credentials M.D.
Gender Female
NPI Issued 04/19/2011

Hospital and facility affiliations

Facilities where KATELYN CLARK, 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.

PEACEHEALTH
SPRINGFIELD, OR
PEACEHEALTH MEDICAL GROUP
SPRINGFIELD, OR

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 KATELYN CLARK, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$980

Largest payer

INTUITIVE SURGICAL, INC.

Most common payment type

Education

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

KATELYN CLARK, M.D. — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 303 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.

303
Total Claims
$7K
Total Drug Cost
134
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
308
Total Day Supply
2,717
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$4K
Generic Drug Cost
$4K
Opioid Claims
115 (38.0% rate)
Antibiotic Claims
73

Patient Demographics

Average Patient Age
69.6 years
Avg HCC Risk Score
1.47
Gender Split
63% female / 37% 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
Oxycodone Hcl
97
Metronidazole
26
Ondansetron Hcl
22
Doxycycline Monohydrate
14
Metoclopramide Hcl
12
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
11
Ondansetron Odt
Ondansetron
11
Promethazine Hcl
11

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

Surgery Physician Overview

How KATELYN CLARK, M.D. fits within the Surgery Physician landscape nationally.

36,191
Surgery Physician Providers in US
56
States with Surgery Physician
169
Avg Claims per Provider

KATELYN CLARK, M.D.'s 303 claims are above the specialty average of 169.

Nearby Surgery Physician Providers in Oregon

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

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

Frequently Asked Questions

What is KATELYN CLARK, M.D.'s specialty?
KATELYN CLARK, M.D. specializes in Surgery Physician and practices in SPRINGFIELD, Oregon. Credentials: M.D..
How much does KATELYN CLARK, M.D. prescribe under Medicare Part D?
In 2023, KATELYN CLARK, M.D. wrote 303 Medicare Part D claims totaling $7K in drug costs for 134 beneficiaries.
Where is KATELYN CLARK, M.D. located?
KATELYN CLARK, M.D. is located at PEACEHEALTH SURGICAL SPECIALTIES, SPRINGFIELD, OR, 97477. Phone: (541) 222-8333.
What is KATELYN CLARK, M.D.'s NPI number?
KATELYN CLARK, M.D.'s National Provider Identifier (NPI) is 1366732729, issued on 04/19/2011.
Does KATELYN CLARK, M.D. prescribe more brand-name or generic drugs?
KATELYN CLARK, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $4K in brand drug costs.
Does KATELYN CLARK, M.D. prescribe opioids?
Yes, KATELYN CLARK, M.D. had 115 opioid claims in 2023 with an opioid prescribing rate of 38.0%.
How many Surgery Physician providers are there in the US?
There are 36,191 Surgery Physician providers across 56 states in the US. The average Surgery Physician provider writes 169 Medicare Part D claims per year.
What drugs does KATELYN CLARK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, KATELYN CLARK, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Metronidazole, Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATELYN CLARK, M.D. accept Medicare?
KATELYN CLARK, M.D. appears in CMS Medicare data with 303 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATELYN CLARK, M.D.'s credentials?
KATELYN CLARK, M.D.'s NPI is 1366732729 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