1. Home
  2. Directory
  3. Missouri
  4. Saint Louis
  5. Physician Assistant
  6. NPI Profile

MS. ABBY MARISSA NELSON PA
NPI 1306302740
Physician Assistant in Saint Louis, MO

Active since February 11, 2019PECOS EnrolledAccepts Medicare Assignment
88.92/100
CMS Quality Rating
12634 OLIVE BLVD, DEPT ORTHOPAEDIC SURGERY, SAINT LOUIS, MO 63141(314) 996-8099(314) 996-8132 Get Directions Write a Review

NPPES record last updated: April 17, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 20, 2024, Feb 11, 2019 (2 updates tracked since 2019).

About Ms. Abby Marissa Nelson Pa NPPES

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

MS. ABBY MARISSA NELSON PA (NPI 1306302740) is an individual physician assistant in Saint Louis, Missouri, licensed in Missouri (2019006015) and active in the NPI registry since February 2019. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Saint Louis University School Of Medicine (2018).

NPPES Registry Identity

NPI1306302740
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMS. ABBY MARISSA NELSONCredential: PA
Location Address12634 OLIVE BLVD, DEPT ORTHOPAEDIC SURGERYSaint Louis, MO 63141-6337
Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 996-8099 · Fax (314) 996-8132
Phone(314) 996-8099
Fax(314) 996-8132
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 2018
Enumeration DateFebruary 11, 2019
Last NPPES UpdateApril 17, 20252 updates tracked since enumeration
✔ NPI 1306302740 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 MO · 2019006015
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.
12634 OLIVE BLVD, Saint Louis, MO 63141
Open in Google Maps ↗

Other Identifiers 1

Medicaid220072978MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans, 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

Ms. Abby Marissa Nelson 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 ID5294169223
PECOS Enrollment IDI20191230001497
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.

Hospital Affiliations CMS Care Compare 2

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

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260162
Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County
Emergency services

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.

88.92/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.72
Promoting Interoperability100
Improvement Activities40
Cost45.01

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.

MS. MARY KATHERINE KINWORTHY CRNA
Nurse Anesthetist, Certified Registered
12634 OLIVE BLVD, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (800) 862-9980
BC MISSOURI EMERGENCY PHYSICIANS, LLP
Emergency Medicine
12634 OLIVE BLVD
SAINT LOUIS, MO 63141
St. Louis County (314) 434-0600
MR. MICHAEL MCCAMLEY CRNA
Nurse Anesthetist, Certified Registered
12634 OLIVE BLVD
SAINT LOUIS, MO 63141
St. Louis County (314) 996-8685
DR. ALBERT M COHEN MD
Anesthesiology
12634 OLIVE BLVD, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (800) 862-9980
AMY MARIE BAUER MAE, BSN, RN, CRNFA
Registered Nurse (Registered Nurse First Assistant)
12634 OLIVE BLVD
CREVE COEUR, MO 63141
St. Louis County (314) 996-8000
MS. SUSAN M ANDERSON CRNA
Nurse Anesthetist, Certified Registered
12634 OLIVE BLVD, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (800) 862-9980
MS. RACHEL JEANNINE HINCHCLIFF CRNA
Nurse Anesthetist, Certified Registered
12634 OLIVE BLVD, DEPT ANESTHESIOLOGY
SAINT LOUIS, MO 63141
St. Louis County (800) 862-9980
ALYSSA BJERK NP-C
Nurse Practitioner (Family)
12634 OLIVE BLVD
SAINT LOUIS, MO 63141
St. Louis County (314) 362-4468

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 Abby Nelson's NPI number?

The NPI number for Abby Nelson is 1306302740. It was assigned to this individual provider in the NPPES registry on February 11, 2019.

Where is Abby Nelson located?

Abby Nelson practices at 12634 Olive Blvd Dept Orthopaedic Surgery, Saint Louis, MO 63141. The listed phone number is (314) 996-8099.

What is Abby Nelson's specialty?

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

Is Abby Nelson enrolled in Medicare?

Yes. Abby Nelson 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 Abby Nelson accept?

Health plans from Cox HealthPlans and UnitedHealthcare list Abby Nelson 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.

Is Abby Nelson affiliated with any hospitals?

According to CMS data, Abby Nelson is affiliated with Barnes Jewish Hospital and Barnes-Jewish West County Hospital.

When was this NPI record last updated?

The NPPES record for Abby Nelson was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.