MS. MARY ANGELYN JOVES CLARK MSN, APRN
NPI 1053887455
Nurse Practitioner in Walnut Creek, CA

Active since October 23, 2018PECOS EnrolledAccepts Medicare Assignment
177 LA CASA VIA STE 390, WALNUT CREEK, CA 94598(925) 692-5610 Get Directions Write a Review

NPPES record last updated: October 9, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 9, 2025, Jan 26, 2023, Apr 6, 2020 and 2 more (5 updates tracked since 2018).

About Ms. Mary Angelyn Joves Clark Msn, Aprn NPPES

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

MS. MARY ANGELYN JOVES CLARK MSN, APRN (NPI 1053887455) is an individual nurse practitioner in Walnut Creek, California, licensed in California (NP95009579) and active in the NPI registry since October 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2018).

NPPES Registry Identity

NPI1053887455
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMS. MARY ANGELYN JOVES CLARKCredential: MSN, APRN
Location Address177 LA CASA VIA STE 390Walnut Creek, CA 94598-6101
Mailing Address1450 Treat Blvd Ste 300Walnut Creek, CA 94597-2168 · (925) 952-2828
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateOctober 23, 2018
Last NPPES UpdateOctober 9, 20255 updates tracked since enumeration
NPPES CertifiedOctober 9, 2025
✔ NPI 1053887455 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in CA · NP95009579
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License 95068012 (CA)
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License NP95009579 (CA)
Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License NP95009579 (CA)
177 LA CASA VIA STE 390, Walnut Creek, CA 94598

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ms. Mary Angelyn Joves Clark Msn, Aprn 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 ID1052644382
PECOS Enrollment IDI20190531000835
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.

Medicare Billing Reassignments

6

Medicare enrollment records show Mary Angelyn Clark reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Practice
1450 TREAT BLVD, SUITE 300
Walnut Creek, CA 94597
  • Reassigned Medicare billing, California enrollment
  • 650 clinicians in this Medicare group
Multi-Specialty
4721 DALLAS RANCH RD
Antioch, CA 94531
  • Reassigned Medicare billing, California enrollment
  • 86 clinicians in this Medicare group
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
Multi-Specialty
1414 N CALIFORNIA ST SUITE A
Stockton, CA 95202
  • Reassigned Medicare billing, California enrollment
  • 534 clinicians in this Medicare group
Internal Medicine
500 HOSPITAL RD
French Camp, CA 95231
  • Reassigned Medicare billing, California enrollment
  • 512 clinicians in this Medicare group
Internal Medicine
12900 PARK PLAZA DR, STE 700, MS-7110
Cerritos, CA 90703
  • Reassigned Medicare billing, California enrollment
  • 235 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.
190 services152 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.
118 services98 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 15

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

Nurse Practitioner
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Nurse Practitioner (Family)
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Physician Assistant
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Nurse Practitioner
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Internal Medicine (Hematology & Oncology)
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Internal Medicine (Hematology & Oncology)
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Internal Medicine (Hematology & Oncology)
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598
Physician Assistant
177 LA CASA VIA STE 390
WALNUT CREEK, CA 94598

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 Angelyn Clark's NPI number?

The NPI number for Mary Angelyn Clark is 1053887455. It was assigned to this individual provider in the NPPES registry on October 23, 2018.

Where is Mary Angelyn Clark located?

Mary Angelyn Clark practices at 177 La Casa Via Ste 390, Walnut Creek, CA 94598. The listed phone number is (925) 692-5610.

What is Mary Angelyn Clark's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Mary Angelyn Clark enrolled in Medicare?

Yes. Mary Angelyn Clark 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.

Which organizations bill Medicare for Mary Angelyn Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Angelyn Clark reassigns Medicare benefits to 6 organizations: John Muir Physician Network (Walnut Creek, CA), Epic Care (Antioch, CA), Permanente Medical Group Inc (Richmond, CA), County Of San Joaquin (Stockton, CA), San Joaquin Faculty Medical Group (French Camp, CA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mary Angelyn Clark's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Angelyn Clark was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.