2026 NPPES data Foot & Ankle Surgery Podiatrist NPI 1326393018 D.P.M
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KATHERINE WILLIAMS, D.P.M

Foot & Ankle Surgery Podiatrist in CHAPEL HILL, North Carolina. 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
218
Medicare Part D claims · 124 beneficiaries · Foot & Ankle Surgery Podiatrist avg: 309
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · [object Object]
Industry payments
$16.04
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

KATHERINE WILLIAMS, D.P.M reported a CMS MIPS final score of 75/100 — below the 83.1 national average — and filed 218 Medicare Part D claims in 2023.

75/100
MIPS score · -8 vs avg
218
Part D claims, 2023
93%
generic prescribing
$16.04
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.

KATHERINE WILLIAMS, D.P.M's MIPS score vs every scored U.S. clinician

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

75 15th percentile higher than 15% 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. 90–100: 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

What does the federal data show about KATHERINE WILLIAMS, D.P.M?

Below national average

NPI registry status

Active

Issued 07/18/2012

NPI 1326393018

Primary specialty

Foot & Ankle Surgery Podiatrist

Mid-sized

8,920 US NPIs in this specialty

Medicare Part D claims

218 29% vs specialty avg

2023 prescription claims

Specialty avg: 309

MIPS final score

75/100 8.099999999999994% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in North Carolina

How Foot & Ankle Surgery Podiatrist compares to other specialties among North Carolina providers

North Carolina providers

Foot & Ankle Surgery Podiatrist share within North Carolina

1. Foot & Ankle Surgery Podiatrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Foot & Ankle Surgery Podiatrist share within North Carolina

Medicare quality performance — MIPS

KATHERINE WILLIAMS, D.P.M's 2023 MIPS final score plotted against the Foot & Ankle Surgery Podiatrist national average

Below national average
MIPS Final Score
75/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Foot & Ankle Surgery Podiatrist) — 75/100 vs national avg 83.1

0%100%National avg83%75%
MIPS final score (Foot & Ankle Surgery Podiatrist) — 75/100 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).

KATHERINE WILLIAMS, D.P.M appears in the CMS NPPES registry as a Foot & Ankle Surgery Podiatrist provider holding D.P.M credentials at 1506 E FRANKLIN ST, CHAPEL HILL, NC, 27514, with a listed phone of (919) 960-8858. NPI 1326393018 was issued on 07/18/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS 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 218 prescription claims written by this provider, covering 124 Medicare beneficiaries and totaling roughly $11K in drug spend, split 7% brand-name and 93% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.

Foot & Ankle Surgery Podiatrist is a mid-sized specialty nationwide, with 8,920 enrolled providers across 53 states and an average of 309 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

1506 E FRANKLIN ST
CHAPEL HILL, NC 27514

Provider Details

NPI 1326393018
Specialty Foot & Ankle Surgery Podiatrist
Credentials D.P.M
Gender Female
NPI Issued 07/18/2012

CMS Quality Score (MIPS)

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

75
Final Score
Avg: 83.1

Reporting: Group practice

Hospital and facility affiliations

Facilities where KATHERINE WILLIAMS, D.P.M 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.

CAROLINA PHYSICAL THERAPY ASSOCIATES LLC
CHAPEL HILL, NC
FOOT AND ANKLE SPECIALISTS OF THE MID-ATLANTIC LLC
CHAPEL HILL, NC
LEGACY HEALTHCARE SERVICES INC
DURHAM, NC

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 KATHERINE WILLIAMS, D.P.M. Source: openpaymentsdata.cms.gov.

Total received

$16

Largest payer

Amgen 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 · Generic-heavy

KATHERINE WILLIAMS, D.P.M — brand share 7.0%
Specialty average (est.)

7% brand-name claims vs 93% generic, on 218 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.

218
Total Claims
$11K
Total Drug Cost
124
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
230
Total Day Supply
3,587
Brand vs Generic
7% brand / 93% generic
Brand Drug Cost
$8K
Generic Drug Cost
$3K
Antibiotic Claims
105

Patient Demographics

Average Patient Age
75.6 years
Avg HCC Risk Score
1.28
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 KATHERINE WILLIAMS, D.P.M 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
Azithromycin
40
Doxycycline Hyclate
34
Mupirocin
34
Cephalexin
18
Neomycin-Polymyxin-Hc
Neomycin/Polymyxin B/Hydrocort
16

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

Foot & Ankle Surgery Podiatrist Overview

How KATHERINE WILLIAMS, D.P.M fits within the Foot & Ankle Surgery Podiatrist landscape nationally.

8,920
Foot & Ankle Surgery Podiatrist Providers in US
53
States with Foot & Ankle Surgery Podiatrist
309
Avg Claims per Provider

KATHERINE WILLIAMS, D.P.M's 218 claims are below the specialty average of 309.

Nearby Foot & Ankle Surgery Podiatrist Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as WILLIAMS.

Compare Foot & Ankle Surgery Podiatrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHERINE WILLIAMS, D.P.M's specialty?
KATHERINE WILLIAMS, D.P.M specializes in Foot & Ankle Surgery Podiatrist and practices in CHAPEL HILL, North Carolina. Credentials: D.P.M.
How much does KATHERINE WILLIAMS, D.P.M prescribe under Medicare Part D?
In 2023, KATHERINE WILLIAMS, D.P.M wrote 218 Medicare Part D claims totaling $11K in drug costs for 124 beneficiaries.
What is KATHERINE WILLIAMS, D.P.M's Medicare quality score?
KATHERINE WILLIAMS, D.P.M has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KATHERINE WILLIAMS, D.P.M located?
KATHERINE WILLIAMS, D.P.M is located at 1506 E FRANKLIN ST, CHAPEL HILL, NC, 27514. Phone: (919) 960-8858.
What is KATHERINE WILLIAMS, D.P.M's NPI number?
KATHERINE WILLIAMS, D.P.M's National Provider Identifier (NPI) is 1326393018, issued on 07/18/2012.
Does KATHERINE WILLIAMS, D.P.M prescribe more brand-name or generic drugs?
KATHERINE WILLIAMS, D.P.M's prescribing is 7% brand-name and 93% generic drugs by claim count, with $8K in brand drug costs.
How many Foot & Ankle Surgery Podiatrist providers are there in the US?
There are 8,920 Foot & Ankle Surgery Podiatrist providers across 53 states in the US. The average Foot & Ankle Surgery Podiatrist provider writes 309 Medicare Part D claims per year.
What drugs does KATHERINE WILLIAMS, D.P.M prescribe most often?
Based on 2023 Medicare Part D data, KATHERINE WILLIAMS, D.P.M's most frequently prescribed drugs include Azithromycin, Doxycycline Hyclate, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does KATHERINE WILLIAMS, D.P.M accept Medicare?
KATHERINE WILLIAMS, D.P.M appears in CMS Medicare data with 218 Part D claims and 124 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHERINE WILLIAMS, D.P.M's credentials?
KATHERINE WILLIAMS, D.P.M's NPI is 1326393018 with credentials D.P.M. 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