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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KRISTEN MICHELLE WILLIAMS PA-C
NPI 1710593041
Physician Assistant in Charlottesville, VA

Active since September 22, 2020PECOS EnrolledAccepts Medicare Assignment
500 MARTHA JEFFERSON DR STE 315A, CHARLOTTESVILLE, VA 22911(434) 654-8390 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 7, 2026, Jun 5, 2025, May 1, 2024 and 3 more (6 updates tracked since 2020).

About Kristen Michelle Williams Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KRISTEN MICHELLE WILLIAMS PA-C (NPI 1710593041) is an individual physician assistant in Charlottesville, Virginia, licensed in Pennsylvania (MA065305) and active in the NPI registry since September 2020. She is enrolled in Medicare PECOS, is affiliated with Allegheny General Hospital, and maintains a secondary practice location in Pittsburgh.

NPPES Registry Identity

NPI1710593041
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKRISTEN MICHELLE WILLIAMSCredential: PA-C
Location Address500 MARTHA JEFFERSON DR STE 315ACharlottesville, VA 22911-4668
Mailing Address320 E North AvePittsburgh, PA 15212-4756 · (412) 359-3030
Phone(434) 654-8390
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateSeptember 22, 2020
Last NPPES UpdateJune 23, 20266 updates tracked since enumeration
NPPES CertifiedJune 23, 2026
✔ NPI 1710593041 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in PA · MA065305
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
500 MARTHA JEFFERSON DR STE 315A, Charlottesville, VA 22911
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Other Names 1

Former Name (1)Kristen Dinofrio

Secondary Practice Location 1

Location 1320 E North AvePittsburgh, PA 15212-4756 · Phone (412) 359-3030

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Kristen Michelle Williams Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537589866
PECOS Enrollment IDI20240701001247
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
51 services23 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Allegheny General Hospital

Acute Care Hospitals · Pittsburgh, PA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390050
Location320 East North AvenuePittsburgh, PA 15212 · Allegheny County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22911 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$70.08 typical visit price
range $18.07 – $138.91
Typical copayment $17.52 (range $4.51 – $34.72)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. BRADLEY NATHANIEL MALLER MD
Internal Medicine (Hematology & Oncology)
500 MARTHA JEFFERSON DR STE 315A
CHARLOTTESVILLE, VA 22911
Albemarle County (434) 654-8390

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kristen Williams's NPI number?

The NPI number for Kristen Williams is 1710593041. It was assigned to this individual provider in the NPPES registry on September 22, 2020. The provider is also known as Kristen Dinofrio.

Where is Kristen Williams located?

Kristen Williams practices at 500 Martha Jefferson Dr Ste 315A, Charlottesville, VA 22911. The listed phone number is (434) 654-8390.

What is Kristen Williams's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Kristen Williams enrolled in Medicare?

Yes. Kristen Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Kristen Williams affiliated with any hospitals?

According to CMS data, Kristen Williams is affiliated with Allegheny General Hospital.

When was this NPI record last updated?

The NPPES record for Kristen Williams was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.