Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARGARETT ANN WALDEN NP-C
NPI 1477099661
Nurse Practitioner - Family in Spartanburg, SC

Q: What is Margarett Walden's NPI number?

The NPI number for Margarett Walden is 1477099661. It was assigned to this individual provider in the NPPES registry on January 11, 2017. The provider is also known as Margarett Ann Graham Np.

Q: What is Margarett Walden's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Q: When was this NPI record last updated?

The NPPES record for Margarett Walden was last updated on October 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 days 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.

Active since January 11, 2017PECOS EnrolledAccepts Medicare Assignment

853 N CHURCH ST STE 620, SPARTANBURG, SC 29303(864) 573-7511(864) 560-1690 Get Directions Write a Review

NPPES record last updated: October 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 5, 2026, Nov 8, 2023, Jun 7, 2023 and 4 more (7 updates tracked since 2017).

On this page

About Margarett Ann Walden Np-c NPPES

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

MARGARETT ANN WALDEN NP-C (NPI 1477099661) is an individual family provider in Spartanburg, South Carolina, licensed in South Carolina (25932) and active in the NPI registry since January 2017. She is enrolled in Medicare PECOS, is affiliated with Watauga Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1477099661

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMARGARETT ANN WALDENCredential: NP-C

Location Address853 N CHURCH ST STE 620Spartanburg, SC 29303-3070

Mailing AddressPo Box 743070Atlanta, GA 30374-3070 · (864) 560-4304 · Fax (864) 560-4413

Phone(864) 573-7511

Fax(864) 560-1690

Sole ProprietorYes

Medical School CMSOtherGraduated 2016

Enumeration DateJanuary 11, 2017

Last NPPES UpdateOctober 5, 20267 updates tracked since enumeration

NPPES CertifiedOctober 5, 2026

✔ NPI 1477099661 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in SC · 25932

Also ListedNurse PractitionerTaxonomy 363L00000X · License 1124257 (TX)

853 N CHURCH ST STE 620, Spartanburg, SC 29303

Open in Google Maps ↗

Other Names 1

Former Name (1)Margarett Ann Graham Np

Secondary Practice Locations 3

Location 12026 S Jackson StJacksonville, TX 75766-5822 · Phone (903) 589-7017

Location 22116 E Rusk StJacksonville, TX 75766-9052 · Phone (903) 589-7017

Location 33201 S Loop 256Palestine, TX 75801-6901 · Phone (903) 723-0330

Other Identifiers 1

OtherSCM5605206SC · Medicare Pin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of NC, UnitedHealthcare.Insurance ›

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

Margarett Ann Walden Np-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 ID1951672039

PECOS Enrollment IDI20230713002283, I20260116001373

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

Medicare enrollment records show Margarett Walden reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Appalachian Regional Medical Associates, Inc.

87 mi

Family Medicine

336 DEERFIELD ROAD
Boone, NC 28607

Reassigned Medicare billing, North Carolina enrollment
207 clinicians in this Medicare group

NPI 1669533923 (828) 262-4100

South Georgia Medicine, P.C.

257 mi

Gastroenterology

1111 20TH ST E
Tifton, GA 31794

Reassigned Medicare billing, Georgia enrollment
3 clinicians in this Medicare group

NPI 1528126182 (229) 382-9338

Christus Trinity Clinic Texas

790 mi

Family Medicine

520 DOUGLAS BLVD
Tyler, TX 75702

Reassigned Medicare billing, Texas enrollment
2,745 clinicians in this Medicare group

NPI 1285684225 (903) 315-4119

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 10

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.

218 services138 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.

95 services78 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

44 services30 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

36 services24 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

35 services24 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.

31 services31 patients

Hospital Affiliations CMS Care Compare 2

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

Watauga Medical Center

Acute Care Hospitals · Boone, NC

3/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number340051

Location336 Deerfield RoadBoone, NC 28607 · Watauga County

Emergency services Birthing friendly

Charles A Cannon Jr Memorial Hospital

Critical Access Hospitals · Linville, NC

OwnershipVoluntary non-profit - Private

CMS Certification Number341323

Location434 Hospital DriveLinville, NC 28646 · Avery County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 29303 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

$83.18 typical visit price

range $53.57 – $163.84

Typical copayment $20.79 (range $13.39 – $40.96)

Most-billed visit code 99203

Established Patient

$95.12 typical visit price

range $16.96 – $133.52

Typical copayment $23.78 (range $4.24 – $33.38)

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 10

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

WESLEY FISHER FNP-BC

Nurse Practitioner (Family)