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MICHAEL WILLIAMS JR. PA
NPI 1790342426
Physician Assistant in Frederickburg, VA

Active since May 29, 2019PECOS EnrolledAccepts Medicare Assignment
84.2/100
CMS Quality Rating
411 B PARK HILL DR, FREDERICKBURG, VA 22401(540) 368-3917(703) 642-1876 Get Directions Write a Review

NPPES record last updated: March 6, 2022. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Mar 6, 2022, May 29, 2019 (2 updates tracked since 2019).

About Michael Williams Jr. Pa NPPES

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

MICHAEL WILLIAMS JR. PA (NPI 1790342426) is an individual physician assistant in Frederickburg, Virginia and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1790342426
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameMICHAEL WILLIAMS JR.Credential: PA
Location Address411 B PARK HILL DRFrederickburg, VA 22401
Mailing Address11350 Mccormick Rd, Executive Plaza 1, Ste. 501Hunt Valley, MD 21031 · (410) 329-1071 · Fax (410) 329-1054
Phone(540) 368-3917
Fax(703) 642-1876
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMay 29, 2019
Last NPPES UpdateMarch 6, 20222 updates tracked since enumeration
NPPES CertifiedMarch 6, 2022
✔ NPI 1790342426 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
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.
411 B PARK HILL DR, Frederickburg, VA 22401
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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

Michael Williams Jr. Pa 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 ID8325473143
PECOS Enrollment IDI20200205000830
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 8

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
927 services314 patients
Injection, dexamethasone sodium phosphate, 1 mg J1100
Dexamethasone sodium phosphate is a medication given via injection. It is a type of steroid that helps reduce inflammation and immune responses. It can be used to treat a variety of conditions, such as allergies, skin conditions, arthritis, and more.
262 services23 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
211 services148 patients
Injection, ketorolac tromethamine, per 15 mg J1885
Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.
208 services40 patients
Injection of trigger points, 3 or more muscles 20553
Trigger point injection therapy involves injecting medication into specific areas of your muscles, known as trigger points. These are areas that produce pain and discomfort. If you have three or more muscles affected, each will be treated individually.
62 services47 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
44 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22401 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

84.2/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Individually scored
Quality74.81
Promoting Interoperability100
Improvement Activities40
Cost72.54

Reported Quality Measures

Advance Care Plan
95%529 patients4/55-star benchmark: 100%
Controlling High Blood Pressure
83%446 patients4/55-star benchmark: 98%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
98%1,172 patients4/55-star benchmark: 100%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
94%1,032 patients4/55-star benchmark: 100%
Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented
79%2,326 patients4/55-star benchmark: 100%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Patients combinedPopulations: 99% · 678 patients
Patients screened: 99% · 678 patients
98%124 patients4/55-star benchmark: 100%
Preventive Care and Screening: Unhealthy Alcohol Use: Screening & Brief Counseling
Patients combinedPopulations: 98% · 677 patients
Patients screened: 100% · 677 patients
87%92 patients
Provide Patients Electronic Access to Their Health Information
99%599 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Michael Williams's NPI number?

The NPI number for Michael Williams is 1790342426. It was assigned to this individual provider in the NPPES registry on May 29, 2019.

Where is Michael Williams located?

Michael Williams practices at 411 B Park Hill Dr, Frederickburg, VA 22401. The listed phone number is (540) 368-3917.

What is Michael Williams's specialty?

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

Is Michael Williams enrolled in Medicare?

Yes. Michael 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.

When was this NPI record last updated?

The NPPES record for Michael Williams was last updated on March 6, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.