GRETCHEN CHAN (FNP) – Family Medicine Physician, NPI 1538645957

GRETCHEN CHAN (FNP) is a healthcare provider. based in Round rock, Texas. specializing in NURSE PRACTITIONER. They hold the professional credentials FNP. They hold a License No. 354799 (NY). The NPI Number for GRETCHEN CHAN (FNP) is 1538645957

Main info

Female
8 Years Of Experience
Accepts Medicare Assignment
Name
GRETCHEN CHAN (FNP)
NPI
1538645957
Phone
(512) 324-4780
Address
201 UNIVERSITY OAKS STE 1260
Enumeration Date
18 July 2018
Last Update Date
21 October 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8663892727
Graduation Year
2018 (8 years ago)
PAC ID
6800140591
Group Practice PAC ID
2567642044
Professional Enrollment ID
I20240724003999
Address ID
NY107092826EA375XXRDXX400
Telehealth
Yes
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness85
Years active:7State licenses:15Digital endpointsOther names

22,204 NURSE PRACTITIONER in TX

Provider Addresses for GRETCHEN CHAN (FNP)

  • 201 UNIVERSITY OAKS STE 1260

    ROUND ROCK, TX 786652437

    Phone: (512) 324-4780

    Type: Mailing

  • 375 WHITE PLAINS RD

    EASTCHESTER, NY 107092826

    Phone:

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2025-11-20

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 12 Medicare enrollment records; no due dates published yet.

Enrollment records

12

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20181115001998INurse PractitionerTXTBD
I20240528001458INurse PractitionerNJTBD
I20240530002305INurse PractitionerNETBD
I20240530002402INurse PractitionerIATBD
I20240613002047INurse PractitionerCTTBD
I20240620003469INurse PractitionerAZTBD
I20240626003529INurse PractitionerOHTBD
I20240724003999INurse PractitionerNYTBD
I20240801003125INurse PractitionerWATBD
I20240830001275INurse PractitionerCATBD
I20251010000065INurse PractitionerNCTBD
I20251120001993INurse PractitionerPATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 78665)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 2567642044View full group profile
NameSpecialtyState
MRS. ALYSSA LUFT
Nurse PractitionerNY
SUSU HUANG
Nurse PractitionerNY
THERESA UCHECHI AMADI (N.P)
Nurse PractitionerNJ
KAREN CHUNG (FNP-BC)
Nurse PractitionerNJ
MRS. RENEE ADRIANA NICHOLS (FNP-BC)
-NY
HOPE O. ENYENIHI (MS, RN, FNP-BC)
-NY
MS. LHACHI KUNSANG GURUNG (RN)
-NY
YUDELKA GARCIA IVORY (N.P.)
-NY
Unknown Individual
-NY
MS. RHONDA LYNN LOKIREDDY (NP-C)
-NY

Reviews

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Frequently asked questions

How is GRETCHEN CHAN (FNP) identified in CMS data?
CMS-hosted NPPES data lists GRETCHEN CHAN (FNP) with NPI 1538645957.
Is GRETCHEN CHAN (FNP) still practicing?
GRETCHEN CHAN (FNP) is currently listed as active in the public NPI registry.
What is GRETCHEN CHAN (FNP) best known for clinically?
Directory data describes GRETCHEN CHAN (FNP) with Family Medicine Physician. Clinical services aligned with this taxonomy classification.
What address line appears for GRETCHEN CHAN (FNP)?
GRETCHEN CHAN (FNP)'s geographic hint is Round Rock, Texas in our summary view.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.