MARY ANN DE GUZMAN LCSW
NPI 1669011748
Counselor in Phoenix, AZ
About Mary Ann De Guzman Lcsw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY ANN DE GUZMAN LCSW (NPI 1669011748) is an individual counselor in Phoenix, Arizona, licensed in Arizona (17508) and active in the NPI registry since January 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary Ann De Guzman Lcsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mary De Guzman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Miami, FL 33130
- Reassigned Medicare billing, Arizona and Hawaii enrollments
- 532 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.
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.
PHOENIX, AZ 85012
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 Mary De Guzman's NPI number?
The NPI number for Mary De Guzman is 1669011748. It was assigned to this individual provider in the NPPES registry on January 6, 2020.
Where is Mary De Guzman located?
Mary De Guzman practices at 650 E Indian School Rd, Phoenix, AZ 85012. The listed phone number is (602) 277-5551.
What is Mary De Guzman's specialty?
The primary specialty registered for this NPI is Counselor with taxonomy code 101Y00000X.
Is Mary De Guzman enrolled in Medicare?
Yes. Mary De Guzman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mary De Guzman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary De Guzman reassigns Medicare benefits to Grow Healthcare Group PA (Miami, FL). 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 Mary De Guzman'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 Mary De Guzman was last updated on January 6, 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.
# Mary Ann De Guzman, LCSW · NPI 1669011748
Counselor provider in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since January 6, 2020.
## Identity
- **NPI:** 1669011748 (Entity type: Individual)
- **Enumerated:** January 6, 2020
- **Primary specialty:** Counselor · taxonomy 101Y00000X
- **State license:** 17508 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 650 E INDIAN SCHOOL RD, Phoenix, AZ 85012-1839
- **Phone:** (602) 277-5551
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PA (NPI 1245845932, Miami, FL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** January 6, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1669011748) · Data from the CMS NPPES public registry.