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DR. GENEVIEVE ANNE WILLIAMSON MD
NPI 1932237294
Psychiatry & Neurology - Child & Adolescent Psychiatry in Santa Fe, NM

Active since March 01, 2007PECOS Enrolled
1800 OLD PECOS TRL STE B, SANTA FE, NM 87505(505) 580-8570(855) 928-6655 Get Directions Write a Review

NPPES record last updated: March 25, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 25, 2026, Aug 22, 2024 (2 updates tracked since 2024).

About Dr. Genevieve Anne Williamson Md NPPES

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

DR. GENEVIEVE ANNE WILLIAMSON MD (NPI 1932237294) is an individual child & adolescent psychiatry provider in Santa Fe, New Mexico, licensed in New Mexico (MD2024-0728) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1932237294
Entity TypeIndividualFemale
Primary Taxonomy2084P0804X
Provider Legal NameDR. GENEVIEVE ANNE WILLIAMSONCredential: MD
Location Address1800 OLD PECOS TRL STE BSanta Fe, NM 87505-4787
Mailing Address1800 Old Pecos Trl Ste BSanta Fe, NM 87505-4787 · (505) 580-8570 · Fax (855) 928-6655
Phone(505) 580-8570
Fax(855) 928-6655
Sole ProprietorYes
Enumeration DateMarch 1, 2007
Last NPPES UpdateMarch 25, 20262 updates tracked since enumeration
NPPES CertifiedMarch 25, 2026
✔ NPI 1932237294 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Child & Adolescent PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0804X
License✔ Licensed in NM · MD2024-0728
Definition
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X · License MD2024-0728 (NM)
1800 OLD PECOS TRL STE B, Santa Fe, NM 87505
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Genevieve Anne Williamson Md 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 Reassignments

5

Medicare enrollment records show Genevieve Williamson reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Presbyterian Healthcare Services
5.5 mi
General Acute Care Hospital
4801 BECKNER ROAD
Santa Fe, NM 87507
  • Reassigned Medicare billing, New Mexico enrollment
  • 2,331 clinicians in this Medicare group
NPI 1730684853 (505) 772-1234
Counseling Service Of Addison County, Inc
1,822 mi
Clinic/Center
89 MAIN ST
Middlebury, VT 05753
  • Reassigned Medicare billing, Vermont enrollment
  • 27 clinicians in this Medicare group
NPI 1336278985 (802) 388-6751
University Of Vermont Medical Center Inc
1,825 mi
Internal Medicine
111 COLCHESTER AVE
Burlington, VT 05401
  • Reassigned Medicare billing, Vermont enrollment
  • 1,643 clinicians in this Medicare group
NPI 1659309615 (802) 847-0000
State Of Vermont
1,853 mi
Psychiatric Hospital
350 FISHER ROAD
Berlin, VT 05633
  • Reassigned Medicare billing, Vermont enrollment
  • 15 clinicians in this Medicare group
NPI 1043567977 (802) 828-3300
Northeastern Vermont Regional Hospital Inc
1,883 mi
Specialist
1315 HOSPITAL DR
St Johnsbury, VT 05819
  • Reassigned Medicare billing, Vermont enrollment
  • 22 clinicians in this Medicare group
NPI 1760773774 (802) 748-8141

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

Other Providers at the Same Location NPPES 4

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

MS. NATALIE M MILLER
Counselor (Mental Health)
1800 OLD PECOS TRL STE B
SANTA FE, NM 87505
Santa Fe County (505) 577-2908
WELLSPRING HEALING
Clinic/Center (Multi-Specialty)
1800 OLD PECOS TRL STE B
SANTA FE, NM 87505
Santa Fe County (505) 690-6679
AUDRA GENDUSO LMT
Massage Therapist
1800 OLD PECOS TRL STE B
SANTA FE, NM 87505
Santa Fe County (505) 690-6679
GENEVIEVE WILLIAMSON MD LLC
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1800 OLD PECOS TRL STE B
SANTA FE, NM 87505
Santa Fe County (505) 580-8570

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 Genevieve Williamson's NPI number?

The NPI number for Genevieve Williamson is 1932237294. It was assigned to this individual provider in the NPPES registry on March 1, 2007.

Where is Genevieve Williamson located?

Genevieve Williamson practices at 1800 Old Pecos Trl Ste B, Santa Fe, NM 87505. The listed phone number is (505) 580-8570.

What is Genevieve Williamson's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.

Is Genevieve Williamson enrolled in Medicare?

Yes. Genevieve Williamson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Genevieve Williamson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Genevieve Williamson reassigns Medicare benefits to 5 organizations: Presbyterian Healthcare Services (Santa Fe, NM), Counseling Service Of Addison County, Inc (Middlebury, VT), University Of Vermont Medical Center Inc (Burlington, VT), State Of Vermont (Berlin, VT) and Northeastern Vermont Regional Hospital Inc (St Johnsbury, VT). 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 Genevieve Williamson'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 Genevieve Williamson was last updated on March 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.