MRS. CAROLYN ANN WILLIAMS ANP-BC
NPI 1326358425
Nurse Practitioner - Family in Houston, TX

Active since October 07, 2010PECOS Enrolled
85.17/100
CMS Quality Rating
20405 STATE HIGHWAY 249 STE 325, HOUSTON, TX 77070(866) 849-0692(888) 973-8821 Get Directions Write a Review

NPPES record last updated: December 9, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Dec 9, 2025, May 12, 2025, Mar 6, 2025 and 8 more (11 updates tracked since 2023).

About Mrs. Carolyn Ann Williams Anp-bc NPPES

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

MRS. CAROLYN ANN WILLIAMS ANP-BC (NPI 1326358425) is an individual family provider in Houston, Texas, licensed in Texas (1097258) and active in the NPI registry since October 2010. She is enrolled in Medicare PECOS and maintains a secondary practice location in Rochester.

NPPES Registry Identity

NPI1326358425
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. CAROLYN ANN WILLIAMSCredential: ANP-BC
Location Address20405 STATE HIGHWAY 249 STE 325Houston, TX 77070-2893
Mailing AddressPo Box 211699Eagan, MN 55121-3699 · (866) 849-0692 · Fax (888) 973-8821
Fax(888) 973-8821
Sole ProprietorNo
Enumeration DateOctober 7, 2010
Last NPPES UpdateDecember 9, 202511 updates tracked since enumeration
NPPES CertifiedDecember 9, 2025
✔ NPI 1326358425 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
Licenses✔ Licensed in TX · 1097258✔ Licensed in OH · 0034101✔ Licensed in FL · APRN11023777✔ Licensed in TN · 35670✔ Licensed in IL · 209031836✔ Licensed in DE · LP-0010967✔ Licensed in PA · SP027545✔ Licensed in AR · 35670✔ Licensed in VA · 0024194798
Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License 305411 (NY)
20405 STATE HIGHWAY 249 STE 325, Houston, TX 77070

Secondary Practice Location 1

Location 11000 South AveRochester, NY 14620-2733 · Phone (585) 473-2200

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Carolyn Ann Williams Anp-bc 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 Carolyn Williams reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Primary Care
20405 STATE HIGHWAY 249 STE 325
Houston, TX 77070
  • Reassigned Medicare billing, Texas enrollment
  • 122 clinicians in this Medicare group
Primary Care
880 SW 145TH AVE STE 202
Pembroke Pines, FL 33027
  • Reassigned Medicare billing, Florida and Tennessee enrollments
  • 64 clinicians in this Medicare group
Primary Care
100 S JUNIPER ST FL 3
Philadelphia, PA 19107
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 19 clinicians in this Medicare group
Emergency Care
601 ELMWOOD AVE # 655
Rochester, NY 14642
  • Reassigned Medicare billing, New York enrollment
  • 197 clinicians in this Medicare group
Internal Medicine
1000 SOUTH AVE
Rochester, NY 14620
  • Reassigned Medicare billing, New York enrollment
  • Also billed through NPI 1992003800 (New York)
  • 303 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77070 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
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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.

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.

85.17/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality70.92
Promoting Interoperability100
Improvement Activities40
Cost62.98

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.

Registered Nurse
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Registered Nurse
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Dietitian, Registered
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Nurse Practitioner (Acute Care)
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Registered Nurse
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Nurse Practitioner (Gerontology)
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Registered Nurse
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070
Registered Nurse
20405 STATE HIGHWAY 249 STE 325
HOUSTON, TX 77070

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 Carolyn Williams's NPI number?

The NPI number for Carolyn Williams is 1326358425. It was assigned to this individual provider in the NPPES registry on October 7, 2010.

Where is Carolyn Williams located?

Carolyn Williams practices at 20405 State Highway 249 Ste 325, Houston, TX 77070. The listed phone number is (866) 849-0692.

What is Carolyn Williams's specialty?

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

Is Carolyn Williams enrolled in Medicare?

Yes. Carolyn Williams is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Carolyn Williams's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Carolyn Williams reassigns Medicare benefits to 5 organizations: Devoted Medical Group Of Texas Inc (Houston, TX), Devoted Medical Group Professional Corporation (Pembroke Pines, FL), Devoted Medical PA PC (Philadelphia, PA), Emergency Associates - University Of Rochester (Rochester, NY) and Highland Hospital Of Rochester (Rochester, NY). 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 Carolyn Williams'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 Carolyn Williams was last updated on December 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.