CASSANDRA LYNN WILLIAMSON PA
NPI 1457565392
Physician Assistant in Dayton, OH

Q: What is Cassandra Williamson's NPI number?

The NPI number for Cassandra Williamson is 1457565392. It was assigned to this individual provider in the NPPES registry on May 10, 2007.

Q: What is Cassandra Williamson's specialty?

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

Active since May 10, 2007PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

4340 CLYO RD STE 200, DAYTON, OH 45459(937) 534-7330(937) 395-3682 Get Directions Write a Review

NPPES record last updated: December 9, 2019. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 9, 2019, Apr 29, 2019 (2 updates tracked since 2019).

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About Cassandra Lynn Williamson Pa NPPES

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

CASSANDRA LYNN WILLIAMSON PA (NPI 1457565392) is an individual physician assistant in Dayton, Ohio, licensed in Ohio (50.002157) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Miami Valley Hospital, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1457565392

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameCASSANDRA LYNN WILLIAMSONCredential: PA

Location Address4340 CLYO RD STE 200Dayton, OH 45459-7000

Mailing Address4340 Clyo Rd Ste 200Dayton, OH 45459-7000 · (937) 396-2602 · Fax (937) 395-3682

Phone(937) 534-7330

Fax(937) 395-3682

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateMay 10, 2007

Last NPPES UpdateDecember 9, 20192 updates tracked since enumeration

✔ NPI 1457565392 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 OH · 50.002157

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.

4340 CLYO RD STE 200, Dayton, OH 45459

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Other Identifiers 1

Medicaid0247616OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

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

Cassandra Lynn Williamson 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 ID4486893518

PECOS Enrollment IDI20171115003362

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 3

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.

265 services160 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.

59 services55 patients

Measurement of liver stiffness 91200

Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.

47 services47 patients

Hospital Affiliations CMS Care Compare 5

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

Miami Valley Hospital

Acute Care Hospitals · Dayton, OH

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360051

LocationOne Wyoming StreetDayton, OH 45409 · Montgomery County

Emergency services Birthing friendly

Kettering Health Main Campus

Acute Care Hospitals · Kettering, OH

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number360079

Location3535 Southern BoulevardKettering, OH 45429 · Montgomery County

Emergency services Birthing friendly

Kettering Health Dayton

Acute Care Hospitals · Dayton, OH

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number360133

Location405 Grand AvenueDayton, OH 45405 · Montgomery County

Birthing friendly

Kettering Health Miamisburg

Acute Care Hospitals · Miamisburg, OH

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number360239

Location4000 Miamisburg-Centerville RoadMiamisburg, OH 45342 · Montgomery County

Emergency services

Soin Medical Center

Acute Care Hospitals · Beaver Creek, OH

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number360360

Location3535 Pentagon Park BlvdBeaver Creek, OH 45431 · Greene County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 45459 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

$84.72 typical visit price

range $54.34 – $166.65

Typical copayment $21.18 (range $13.58 – $41.66)

Most-billed visit code 99203

Established Patient

$68.07 typical visit price

range $17.10 – $135.40

Typical copayment $17.01 (range $4.27 – $33.85)

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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

Leave this field empty

Other Providers at the Same Location NPPES 17

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

ANDREA J HOFFMAN PA-C

Physician Assistant