CASSANDRA BLAIR WILLISON PA-C
NPI 1083135735
Physician Assistant in Baltimore, MD

Q: What is Cassandra Willison's NPI number?

The NPI number for Cassandra Willison is 1083135735. It was assigned to this individual provider in the NPPES registry on July 3, 2017.

Q: What is Cassandra Willison's specialty?

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

Active since July 03, 2017PECOS Enrolled

74.39/100

CMS Quality Rating

4940 EASTERN AVE, BALTIMORE, MD 21224(410) 550-7900 Get Directions Write a Review

NPPES record last updated: June 13, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 13, 2021, Aug 25, 2018, Jul 3, 2017 (3 updates tracked since 2017).

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About Cassandra Blair Willison Pa-c NPPES

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

CASSANDRA BLAIR WILLISON PA-C (NPI 1083135735) is an individual physician assistant in Baltimore, Maryland, licensed in Maryland (C06526) and active in the NPI registry since July 2017. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1083135735

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameCASSANDRA BLAIR WILLISONCredential: PA-C

Location Address4940 EASTERN AVEBaltimore, MD 21224

Mailing Address9910 Franklin Square Dr Ste 2110Baltimore, MD 21236-4902 · (410) 933-6423 · Fax (410) 933-1390

Phone(410) 550-7900

Sole ProprietorNo

Medical School CMSOtherGraduated 2017

Enumeration DateJuly 3, 2017

Last NPPES UpdateJune 13, 20213 updates tracked since enumeration

NPPES CertifiedJune 13, 2021

✔ NPI 1083135735 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 MD · C06526

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.

4940 EASTERN AVE, Baltimore, MD 21224

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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 (PECOS)

Cassandra Blair Willison Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID2062788565

PECOS Enrollment IDI20180913001902

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 4

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.

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

70 services70 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

70 services70 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

54 services54 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

53 services41 patients

Hospital Affiliations CMS Care Compare

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

Johns Hopkins Hospital, The

Acute Care Hospitals · Baltimore, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210009

Location600 North Wolfe StreetBaltimore, MD 21287 · Baltimore City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21224 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

$94.08 typical visit price

range $60.73 – $183.44

Typical copayment $23.52 (range $15.18 – $45.86)

Most-billed visit code 99203

Established Patient

$75.47 typical visit price

range $19.60 – $149.17

Typical copayment $18.86 (range $4.90 – $37.29)

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.

74.39/100

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

Scored as part of a group practice

Quality

64.71

Promoting Interoperability

Improvement Activities

Cost

52.43

Other Providers at the Same Location NPPES 20

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

DR. SUSRUTHA KOTWAL MD

Internal Medicine

4940 EASTERN AVE, MFL BLDG, WEST TOWER, 6TH FLOOR
BALTIMORE, MD 21224

Baltimore City (410) 550-5018

DR. SAMANTHA A WOLFE MD

Otolaryngology