ANN CHANG FNP-C, PMHNP-BC
NPI 1508287186
Nurse Practitioner - Psychiatric/Mental Health in Big Spring, TX
About Ann Chang Fnp-c, Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANN CHANG FNP-C, PMHNP-BC (NPI 1508287186) is an individual psychiatric/mental health provider in Big Spring, Texas, licensed in Texas (AP124852) and active in the NPI registry since December 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses 2
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
Ann Chang Fnp-c, Pmhnp-bc 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.
Medicare Billing Reassignment
Medicare enrollment records show Ann Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Big Spring, TX 79720
- Reassigned Medicare billing, Texas enrollment
- 452 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 79720 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Ann Chang's NPI number?
The NPI number for Ann Chang is 1508287186. It was assigned to this individual provider in the NPPES registry on December 26, 2013.
Where is Ann Chang located?
Ann Chang practices at 1901 N Hwy 87, Big Spring, TX 79720. The listed phone number is (432) 263-7361.
What is Ann Chang's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Ann Chang enrolled in Medicare?
Yes. Ann Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Ann Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ann Chang reassigns Medicare benefits to Health And Human Services Commission (Big Spring, TX). 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 Ann Chang'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 Ann Chang was last updated on March 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Ann Chang, FNP-C, PMHNP-BC · NPI 1508287186
Psychiatric/Mental Health physician in Big Spring, Texas. Individual provider, active in the CMS NPPES registry since December 26, 2013.
## Identity
- **NPI:** 1508287186 (Entity type: Individual)
- **Enumerated:** December 26, 2013
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** AP124852 (Texas)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1901 N HWY 87, Big Spring, TX 79720-5566
- **Phone:** (432) 263-7361
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Health And Human Services Commission (NPI 1437262326, Big Spring, TX), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** March 27, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1508287186) · Data from the CMS NPPES public registry.