DR. ROBERT S. CHANG PH.D., A.B.M.P.
NPI 1144351586
Psychologist - Prescribing (Medical) in Albuquerque, NM
About Dr. Robert S. Chang Ph.d., A.b.m.p. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT S. CHANG PH.D., A.B.M.P. (NPI 1144351586) is an individual prescribing (medical) provider in Albuquerque, New Mexico, licensed in New Mexico (0037) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 14
Other Identifiers 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
Dr. Robert S. Chang Ph.d., A.b.m.p. 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 Reassignments
2Medicare enrollment records show Robert Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Albuquerque, NM 87106
- Reassigned Medicare billing, Texas enrollment
- 133 clinicians in this Medicare group
Albuquerque, NM 87109
- Reassigned Medicare billing, New Mexico enrollment
- 399 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus St Vincent Regional Medical Center
Acute Care Hospitals · Santa Fe, NMOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ALBUQUERQUE, NM 87106
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 Robert Chang's NPI number?
The NPI number for Robert Chang is 1144351586. It was assigned to this individual provider in the NPPES registry on March 8, 2007.
Where is Robert Chang located?
Robert Chang practices at 801 Vassar Dr NE, Albuquerque, NM 87106. The listed phone number is (505) 248-4046.
What is Robert Chang's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Prescribing (Medical), with taxonomy code 103TP0016X.
Is Robert Chang enrolled in Medicare?
Yes. Robert 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 organizations bill Medicare for Robert Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Chang reassigns Medicare benefits to 2 organizations: Albuquerque Indian Health Center (Albuquerque, NM) and St Vincent Hospital (Albuquerque, NM). 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 Robert Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Robert Chang affiliated with any hospitals?
According to CMS data, Robert Chang is affiliated with Christus St Vincent Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Robert Chang was last updated on April 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Robert S. Chang, PH.D., A.B.M.P. · NPI 1144351586
Prescribing (Medical) provider in Albuquerque, New Mexico. Individual provider, active in the CMS NPPES registry since March 8, 2007.
## Identity
- **NPI:** 1144351586 (Entity type: Individual)
- **Enumerated:** March 8, 2007
- **Primary specialty:** Psychologist - Prescribing (Medical) · taxonomy 103TP0016X
- **State license:** 0037 (New Mexico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 801 VASSAR DR NE, Albuquerque, NM 87106-2725
- **Phone:** (505) 248-4046
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Albuquerque Indian Health Center (NPI 1659458917, Albuquerque, NM); St Vincent Hospital (NPI 1184558363, Albuquerque, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** April 2, 2018
- **Other identifiers:** Other 1248 (NM); Other 0037 (NM)
---
Source: [NPI Profile](https://npiprofile.com/npi/1144351586) · Data from the CMS NPPES public registry.