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MRS. MIRIAM E SIEGWORTH ANP
NPI 1710209929
Nurse Practitioner - Adult Health in Dallas, TX

Active since February 16, 2010PECOS Enrolled
3600 GASTON AVE, DALLAS, TX 75246(214) 827-0330(214) 827-2860 Get Directions Write a Review

NPPES record last updated: February 16, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mrs. Miriam E Siegworth Anp NPPES

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

MRS. MIRIAM E SIEGWORTH ANP (NPI 1710209929) is an individual adult health provider in Dallas, Texas, licensed in Texas (771808) and active in the NPI registry since February 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1710209929
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameMRS. MIRIAM E SIEGWORTHCredential: ANP
Location Address3600 GASTON AVEDallas, TX 75246-1800
Mailing Address3600 Gaston AveDallas, TX 75246-1800 · (214) 827-0330 · Fax (214) 827-2860
Phone(214) 827-0330
Fax(214) 827-2860
Sole ProprietorNo
Enumeration DateFebruary 16, 2010
✔ NPI 1710209929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in TX · 771808
3600 GASTON AVE, Dallas, TX 75246
Open in Google Maps ↗

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Miriam E Siegworth Anp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show Miriam Siegworth reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Matrix Medical Of New York PC
1,374 mi
Nurse Practitioner
1740 BROADWAY
New York, NY 10019
  • Reassigned Medicare billing, New York enrollment
  • 114 clinicians in this Medicare group
NPI 1639433063 (480) 862-1677

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75246 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
$88.19 typical visit price
range $57.18 – $172.86
Typical copayment $22.04 (range $14.29 – $43.21)
Most-billed visit code 99203
Established Patient
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
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 20

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

DR. MAMTA GUPTA MD
Internal Medicine
3600 GASTON AVE, SUITE 550
DALLAS, TX 75246
Dallas County (214) 821-8867
DR. ARIEL MARCELO MODRYKAMIEN M.D.
Internal Medicine (Pulmonary Disease)
3600 GASTON AVE, WADLEY TOWER, SUITE 960
DALLAS, TX 75246
Dallas County (402) 972-6078
SUSAN C. CHESIRE ANP
Nurse Practitioner (Adult Health)
3600 GASTON AVE, WADLEY TOWER, SUITE 651
DALLAS, TX 75246
Dallas County (214) 820-9115
DR. SADAT ANWAR SHAMIM M.D.
Psychiatry & Neurology (Neurology)
3600 GASTON AVE, SUITE 1155
DALLAS, TX 75246
Dallas County (214) 820-4688
KIMBER LEE FOUST MD
Internal Medicine (Critical Care Medicine)
3600 GASTON AVE, WADLEY TOWER STE 960
DALLAS, TX 75246
Dallas County (214) 820-5630
TEXAS SAM HOLDINGS, LLC
Clinic/Center (Sleep Disorder Diagnostic)
3600 GASTON AVE, SUITE 1055
DALLAS, TX 75246
Dallas County (214) 827-0330
DR. CARLOS E VELASCO MD
Internal Medicine (Interventional Cardiology)
3600 GASTON AVE, SUITE 851
DALLAS, TX 75246
Dallas County (214) 826-6044
ROBERT LOUIS KOSTER M.D.
Internal Medicine
3600 GASTON AVE, SUITE 703
DALLAS, TX 75246
Dallas County (214) 823-4200

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 Miriam Siegworth's NPI number?

The NPI number for Miriam Siegworth is 1710209929. It was assigned to this individual provider in the NPPES registry on February 16, 2010.

Where is Miriam Siegworth located?

Miriam Siegworth practices at 3600 Gaston Ave, Dallas, TX 75246. The listed phone number is (214) 827-0330.

What is Miriam Siegworth's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Miriam Siegworth enrolled in Medicare?

Yes. Miriam Siegworth is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Miriam Siegworth's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Miriam Siegworth reassigns Medicare benefits to Matrix Medical Of New York PC (New York, NY). The 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 Miriam Siegworth'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 Miriam Siegworth was last updated on February 16, 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.