DR. CARMEN MARGARITA DIAZ PH.D.
NPI 1962421834
Psychologist - Prescribing (Medical) in Las Cruces, NM
About Dr. Carmen Margarita Diaz Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARMEN MARGARITA DIAZ PH.D. (NPI 1962421834) is an individual prescribing (medical) provider in Las Cruces, New Mexico, licensed in New Mexico (0032) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lordsburg, and is a graduate of Other (2003).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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. Carmen Margarita Diaz Ph.d. 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 Carmen Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Las Cruces, NM 88011
- Reassigned Medicare billing, New Mexico enrollment
San Lorenzo, NM 88041
- Reassigned Medicare billing, New Mexico enrollment
- 93 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
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.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAS CRUCES, NM 88001
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 Carmen Diaz's NPI number?
The NPI number for Carmen Diaz is 1962421834. It was assigned to this individual provider in the NPPES registry on July 19, 2006.
Where is Carmen Diaz located?
Carmen Diaz practices at 201 N Church St Ste 200B, Las Cruces, NM 88001. The listed phone number is (575) 522-5802.
What is Carmen Diaz's specialty?
The primary specialty registered for this NPI is Psychologist, specializing in Prescribing (Medical), with taxonomy code 103TP0016X.
Is Carmen Diaz enrolled in Medicare?
Yes. Carmen Diaz 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 Carmen Diaz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carmen Diaz reassigns Medicare benefits to 2 organizations: Carmen M Diaz Phd (Las Cruces, NM) and Hidalgo Medical Services (San Lorenzo, 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 Carmen Diaz'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 Carmen Diaz was last updated on June 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Carmen Margarita Diaz, PH.D. · NPI 1962421834
Prescribing (Medical) provider in Las Cruces, New Mexico. Individual provider, active in the CMS NPPES registry since July 19, 2006.
## Identity
- **NPI:** 1962421834 (Entity type: Individual)
- **Enumerated:** July 19, 2006
- **Primary specialty:** Psychologist - Prescribing (Medical) · taxonomy 103TP0016X
- **State license:** 0032 (New Mexico)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 201 N CHURCH ST STE 200B, Las Cruces, NM 88001-3515
- **Phone:** (575) 522-5802 · **Fax:** (866) 284-6720
## 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): Carmen M Diaz Phd (NPI 1144638271, Las Cruces, NM); Hidalgo Medical Services (NPI 1801889878, San Lorenzo, NM) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2003
## Record status
- **NPPES last updated:** June 25, 2025
- **Other identifiers:** Medicaid 62125729 (NM); Medicaid 00679577 (NM)
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Source: [NPI Profile](https://npiprofile.com/npi/1962421834) · Data from the CMS NPPES public registry.