Erin E. Williams, PA

  • Saint Marys, PA
  • Physician assistant
NPI1366822546PAC ID9032423595
Medicare patients, 2024
43
Part D claims, 2024
3,536
MIPS score, 2024
97
Hospital affiliations
2
Industry payments
$198
Practice address
763 Johnsonburg Road, Saint Marys, PA 15857
Practice phone
Call (814) 788-8000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Penn Highlands Elk

Hospital · Saint Marys, Pennsylvania

See all 6 affiliations

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Erin E. Williams is a physician assistant in Saint Marys, Pennsylvania

Erin Williams practices at Penn Highlands Elk in Saint Marys, Pennsylvania, part of Penn Highlands Healthcare.

Erin Williams' NPI, 1366822546, was assigned on June 3, 2015.

NPI and contact details
Medicare PAC ID
9032423595
NPI enumeration date
June 3, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(814) 788-8000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Female
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Erin E. Williams practices at Penn Highlands Elk in Saint Marys, Pennsylvania

Erin Williams' primary practice is Penn Highlands Elk, at 763 Johnsonburg Road, Saint Marys, PA 15857 in Elk County. The practice phone is (814) 788-8000.

  • Penn Highlands Elk
    763 Johnsonburg Road, Saint Marys, PA 15857 · Elk CountyPhone(814) 788-8000

Source: Dmand AI Affiliation Data

Erin E. Williams is affiliated with 4 sites of care and 2 medical groups

Erin Williams' primary practice is Penn Highlands Elk in Saint Marys, Pennsylvania, part of Penn Highlands Healthcare. Erin Williams is also affiliated with Penn Highlands DuBois. The medical group on file is Penn Highlands DuBois. Dmand AI also links Erin Williams to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Erin Williams

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Erin E. Williams' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Erin Williams practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Penn Highlands ElkAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Erin E. Williams is one of 3,022 physician assistants in Pennsylvania

Medical is Erin Williams' primary specialty in the NPI Registry, under taxonomy code 363AM0700X.

Specialties and state licenses

  • Medical physician assistantPrimarytaxonomy 363AM0700X

Physician assistants near Erin Williams

Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Erin E. Williams treated 43 Medicare patients in 2024, average age 73

CMS counts 43 Medicare patients who saw Erin Williams in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.03, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Erin Williams' median patient age at 65, with 58% women.

Medicare patients, 202443
Average age73
Average risk score1.03

Erin Williams' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Erin Williams' Medicare patients by sex, 2024

  • Women2251%
  • Men2149%

Chronic conditions among Erin Williams' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis44%
  4. Diabetes30%
  5. Anxiety28%

Share of Medicare patients with each condition. A patient can have several.

Erin Williams' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women58%
  • Men42%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Erin E. Williams wrote 3,536 Medicare Part D claims in 2024

In 2024, Erin Williams wrote 3,536 Medicare Part D claims for 227 patients. 88% of them were for generic drugs.

Part D claims, 20243,536
Part D patients227

Erin Williams' Part D claims by kind of drug, 2024

  • Generic3,122 claims88%
  • Brand-name and other414 claims12%

Drug classes CMS tracks in Erin Williams' Part D claims, 2024

  • Opioids2%71 of 3,536 claims
  • Antibiotics1%48 of 3,536 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

Erin E. Williams scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Erin Williams for performance year 2024, reported as part of a group. Erin Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Erin Williams' MIPS scores, performance year 2024

  • 97of 100Final score
  • 96of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Erin E. Williams received $198 in industry payments in 2025

CMS Open Payments shows 9 general payments to Erin Williams from 5 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $104.

Companies that paid Erin Williams the most, 2025 to 2025

Share is of all general payments to this clinician.

See all payments to Erin Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Erin E. Williams's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Erin E. Williams

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Erin E. Williams' NPI number?

Erin E. Williams' NPI number is 1366822546. It was assigned on June 3, 2015, and it is active in the NPI Registry.

What does Erin E. Williams specialize in?

Erin E. Williams is a physician assistant in Saint Marys, Pennsylvania. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).

Where does Erin E. Williams practice?

Erin Williams practices at 763 Johnsonburg Road, Saint Marys, PA 15857. Erin Williams' primary practice is Penn Highlands Elk in Saint Marys, Pennsylvania, part of Penn Highlands Healthcare. Dmand AI also links Erin Williams to 2 group practices and clinics and 1 medical group.

What is Erin E. Williams' office phone number?

The practice phone on file for Erin Williams is (814) 788-8000.

Which hospitals is Erin E. Williams affiliated with?

Erin Williams practices at Penn Highlands Elk in Saint Marys, Pennsylvania. Erin Williams is also affiliated with Penn Highlands DuBois.

What medical group is Erin E. Williams part of?

Erin Williams is linked to Penn Highlands DuBois. Dmand AI links Erin Williams to 1 more medical group.

Does Erin E. Williams accept Medicare?

Yes. CMS lists Erin Williams as accepting Medicare assignment.

What is Erin E. Williams' MIPS score?

Erin Williams' MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

How many Medicare patients does Erin E. Williams see?

CMS counts 43 Medicare patients who saw Erin Williams in 2024, with an average age of 73.

Has Erin E. Williams received payments from drug or device companies?

CMS Open Payments shows $198 in general payments to Erin Williams from 5 companies from 2025 to 2025. The largest total came from Novo Nordisk Inc.

How long has Erin E. Williams been practicing?

Erin Williams graduated from medical school in 2015, 11 years ago.

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