2026 NPPES data Dermatopathology (Pathology) Physician NPI 1306423231 MD
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SARAH WILLIAMSON, MD

Dermatopathology (Pathology) Physician in ROCHESTER, Minnesota. 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
718
Medicare Part D claims · 170 beneficiaries · Dermatopathology (Pathology) Physician avg: 369
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$307.91
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SARAH WILLIAMSON, MD is a Dermatopathology (Pathology) Physician ([object Object]) practicing in ROCHESTER, Minnesota with a Medicare Part D prescribing footprint of 718 claims across 170 beneficiaries — 13% brand-name prescribing . Industry payments of $307.91 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SARAH WILLIAMSON, MD filed 718 Medicare Part D claims in 2023 across ROCHESTER, Minnesota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

SARAH WILLIAMSON, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

SARAH WILLIAMSON, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/26/2021

NPI 1306423231

Primary specialty

Dermatopathology (Pathology) Physician

Niche

559 US NPIs in this specialty

Medicare Part D claims

718 95% vs specialty avg

2023 prescription claims

Specialty avg: 369

Specialty distribution in Minnesota

How Dermatopathology (Pathology) Physician compares to other specialties among Minnesota providers

Minnesota providers

Dermatopathology (Pathology) Physician share within Minnesota

1. Dermatopathology (Pathology) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dermatopathology (Pathology) Physician share within Minnesota

Specialty board-certification context

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

Quality data not reported
Est. board-certified rate
78%
Dermatopathology (Pathology) Physician ABMS/AOA estimate

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

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

SARAH WILLIAMSON, MD is a Dermatopathology (Pathology) Physician provider practicing in ROCHESTER, Minnesota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1306423231. 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.

SARAH WILLIAMSON, MD appears in the CMS NPPES registry as a Dermatopathology (Pathology) Physician provider holding MD credentials at 200 1ST ST SW, ROCHESTER, MN, 55905, with a listed phone of (507) 284-2511. NPI 1306423231 was issued on 03/26/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMSON 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 718 prescription claims written by this provider, covering 170 Medicare beneficiaries and totaling roughly $307K in drug spend, split 13% brand-name and 87% 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.

Dermatopathology (Pathology) Physician is a narrow specialty nationwide, with 559 enrolled providers across 49 states and an average of 369 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

200 1ST ST SW
ROCHESTER, MN 55905

Provider Details

NPI 1306423231
Specialty Dermatopathology (Pathology) Physician
Credentials MD
Gender Female
NPI Issued 03/26/2021

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 SARAH WILLIAMSON, MD. Source: openpaymentsdata.cms.gov.

Total received

$308

Largest payer

SUN PHARMACEUTICAL INDUSTRIES 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.

Brand vs generic prescribing mix · Typical

SARAH WILLIAMSON, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 718 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.

718
Total Claims
$307K
Total Drug Cost
170
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
756
Total Day Supply
19,202
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$283K
Generic Drug Cost
$24K
Antibiotic Claims
72

Patient Demographics

Average Patient Age
67.8 years
Avg HCC Risk Score
1.79
Gender Split
61% female / 39% male
Age Distribution
<65: 46, 65-74: 82, 75-84: 30, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Triamcinolone Acetonide
115
Doxycycline Hyclate
61
Ketoconazole
51
Clobetasol Propionate
48
Fluocinonide
47
Hydrocortisone
39
Hydroxyzine Hcl
27
Clindamycin Phosphate
26
Tacrolimus
23
Ammonium Lactate
22

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

Dermatopathology (Pathology) Physician Overview

How SARAH WILLIAMSON, MD fits within the Dermatopathology (Pathology) Physician landscape nationally.

559
Dermatopathology (Pathology) Physician Providers in US
49
States with Dermatopathology (Pathology) Physician
369
Avg Claims per Provider

SARAH WILLIAMSON, MD's 718 claims are above the specialty average of 369.

Nearby Dermatopathology (Pathology) Physician Providers in Minnesota

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

Compare Dermatopathology (Pathology) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SARAH WILLIAMSON, MD's specialty?
SARAH WILLIAMSON, MD specializes in Dermatopathology (Pathology) Physician and practices in ROCHESTER, Minnesota. Credentials: MD.
How much does SARAH WILLIAMSON, MD prescribe under Medicare Part D?
In 2023, SARAH WILLIAMSON, MD wrote 718 Medicare Part D claims totaling $307K in drug costs for 170 beneficiaries.
Where is SARAH WILLIAMSON, MD located?
SARAH WILLIAMSON, MD is located at 200 1ST ST SW, ROCHESTER, MN, 55905. Phone: (507) 284-2511.
What is SARAH WILLIAMSON, MD's NPI number?
SARAH WILLIAMSON, MD's National Provider Identifier (NPI) is 1306423231, issued on 03/26/2021.
Does SARAH WILLIAMSON, MD prescribe more brand-name or generic drugs?
SARAH WILLIAMSON, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $283K in brand drug costs.
How many Dermatopathology (Pathology) Physician providers are there in the US?
There are 559 Dermatopathology (Pathology) Physician providers across 49 states in the US. The average Dermatopathology (Pathology) Physician provider writes 369 Medicare Part D claims per year.
What drugs does SARAH WILLIAMSON, MD prescribe most often?
Based on 2023 Medicare Part D data, SARAH WILLIAMSON, MD's most frequently prescribed drugs include Triamcinolone Acetonide, Doxycycline Hyclate, Ketoconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARAH WILLIAMSON, MD accept Medicare?
SARAH WILLIAMSON, MD appears in CMS Medicare data with 718 Part D claims and 170 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARAH WILLIAMSON, MD's credentials?
SARAH WILLIAMSON, MD's NPI is 1306423231 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.
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