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MARY ELIZABETH KING JOHNSON PA-C
NPI 1992944904
Physician Assistant in Saint Louis, MO

Active since February 13, 2009PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
1040 N MASON RD, SUITE 103, SAINT LOUIS, MO 63141(314) 469-7246 Get Directions Write a Review

NPPES record last updated: July 21, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mary Elizabeth King Johnson Pa-c NPPES

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

MARY ELIZABETH KING JOHNSON PA-C (NPI 1992944904) is an individual physician assistant in Saint Louis, Missouri, licensed in Illinois (085003419) and active in the NPI registry since February 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1992944904
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMARY ELIZABETH KING JOHNSONCredential: PA-C
Location Address1040 N MASON RD, SUITE 103Saint Louis, MO 63141-6399
Mailing Address1352 Culpepper Ridge DrBallwin, MO 63021-7527 · (972) 898-9221
Phone(314) 469-7246
Sole ProprietorNo
Medical School CMSOtherGraduated 2009
Enumeration DateFebruary 13, 2009
Last NPPES UpdateJuly 21, 2010
✔ NPI 1992944904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in IL · 085003419✔ Licensed in MO · 2009001275
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.
1040 N MASON RD, Saint Louis, MO 63141
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Other Identifiers 1

Medicare PIN567730004IL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.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

Mary Elizabeth King Johnson 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 ID345307336
PECOS Enrollment IDI20100526000012
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 7

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 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.
65 services63 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
31 services31 patients
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg J0702
This injection contains two medications, betamethasone acetate and betamethasone sodium phosphate. It is used to reduce inflammation and pain. It's given by a healthcare professional, often directly into the area causing discomfort.
28 services11 patients
X-ray of knee, 4 or more views 73564
An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.
19 services19 patients
X-ray of hand, minimum of 3 views 73130
An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.
15 services12 patients
X-ray of foot, minimum of 3 views 73630
An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63141 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
$86.32 typical visit price
range $55.65 – $169.38
Typical copayment $21.58 (range $13.91 – $42.34)
Most-billed visit code 99203
Established Patient
$69.50 typical visit price
range $17.76 – $137.92
Typical copayment $17.37 (range $4.44 – $34.48)
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.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

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.

DR. PHILLIP ERWIN KORENBLAT M.D.
Specialist
1040 N MASON RD, SUITE 112
SAINT LOUIS, MO 63141
St. Louis County (314) 514-8509
PHYSICIAN GROUPS LC
Clinic/Center (Medical Specialty)
1040 N MASON RD, SUITE 206
SAINT LOUIS, MO 63141
St. Louis County (314) 878-1950
MS. KATHLEEN P LOBELLO ANP
Nurse Practitioner (Adult Health)
1040 N MASON RD
SAINT LOUIS, MO 63141
St. Louis County (314) 362-8200
MR. DENNIS GLENN HAFFORD PA
Physician Assistant (Surgical)
1040 N MASON RD, DIV SURG UROLOGY
SAINT LOUIS, MO 63141
St. Louis County (314) 362-8200
PHYSICIAN GROUPS LC
Clinic/Center (Medical Specialty)
1040 N MASON RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 996-8349
PHYSICIAN GROUPS LC
Clinic/Center (Primary Care)
1040 N MASON RD, SUITE 102
SAINT LOUIS, MO 63141
St. Louis County (314) 996-8349
ORTHOPEDIC CARE OF ST. LOUIS, PC
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
1040 N MASON RD, SUITE G03
SAINT LOUIS, MO 63141
St. Louis County (314) 434-0030
TEMPO SURGICAL INC
Surgery
1040 N MASON RD, 214
ST LOUIS, MO 63141
St. Louis County (314) 275-9770

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 Mary Johnson's NPI number?

The NPI number for Mary Johnson is 1992944904. It was assigned to this individual provider in the NPPES registry on February 13, 2009.

Where is Mary Johnson located?

Mary Johnson practices at 1040 N Mason Rd Suite 103, Saint Louis, MO 63141. The listed phone number is (314) 469-7246.

What is Mary Johnson's specialty?

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

Is Mary Johnson enrolled in Medicare?

Yes. Mary Johnson 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.

What insurance does Mary Johnson accept?

Health plans from UnitedHealthcare list Mary Johnson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mary Johnson was last updated on July 21, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.