GRACE MARIE MELLEN R.N. / N.P.
NPI 1184010852
Registered Nurse in Paradise Valley, AZ

Q: What is Grace Mellen's NPI number?

The NPI number for Grace Mellen is 1184010852. It was assigned to this individual provider in the NPPES registry on April 9, 2015.

Q: What is Grace Mellen's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

Q: When was this NPI record last updated?

The NPPES record for Grace Mellen was last updated on April 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since April 09, 2015PECOS Enrolled

10585 N TATUM BLVD, SUITE D130, PARADISE VALLEY, AZ 85253(602) 997-7263(602) 944-4553 Get Directions Write a Review

NPPES record last updated: April 9, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Grace Marie Mellen R.n. / N.p. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRACE MARIE MELLEN R.N. / N.P. (NPI 1184010852) is an individual registered nurse in Paradise Valley, Arizona, licensed in Arizona (RN120100) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1184010852

Entity TypeIndividualFemale

Primary Taxonomy163W00000X

Provider Legal NameGRACE MARIE MELLENCredential: R.N. / N.P.

Location Address10585 N TATUM BLVD, SUITE D130Paradise Valley, AZ 85253-1073

Mailing Address112 E. Mcdowell RdPhoenix, AZ 85006-2611 · (602) 258-4951 · Fax (602) 340-1853

Phone(602) 997-7263

Fax(602) 944-4553

Sole ProprietorNo

Enumeration DateApril 9, 2015

✔ NPI 1184010852 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRegistered NurseNursing Service Providers

Taxonomy Code163W00000X

License✔ Licensed in AZ · RN120100

Definition

(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

Also ListedNurse Practitioner · Adult HealthTaxonomy 363LA2200X · License AP7444 (AZ)

10585 N TATUM BLVD, Paradise Valley, AZ 85253

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Grace Marie Mellen R.n. / N.p. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Grace Mellen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

United Physicians Group LLC

6.9 mi

Internal Medicine

20235 N CAVE CREEK RD, STE 104, #622
Phoenix, AZ 85024

Reassigned Medicare billing, Arizona enrollment
9 clinicians in this Medicare group

NPI 1316336845 (602) 363-1116

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 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CRISTIAN N JIVCU M.D.

Internal Medicine (Pulmonary Disease)

10585 N TATUM BLVD, STE D130
PARADISE VALLEY, AZ 85253

Maricopa County (602) 559-9966

BENJAMIN M. SUCHER, D.O., P.C.

Neuromusculoskeletal Medicine & OMM

10585 N TATUM BLVD, SUITE D135
PARADISE VALLEY, AZ 85253

Maricopa County (480) 483-7387

INTERNAL MEDICINE OF THE VALLEY PLC

Clinic/Center (Primary Care)

10585 N TATUM BLVD, D-137
PARADISE VALLEY, AZ 85253

Maricopa County (602) 277-2361

PARADISE VALLEY ENDODONTIC GROUP, PLLC

Clinic/Center (Dental)

10585 N TATUM BLVD, D-132
PARADISE VALLEY, AZ 85253

Maricopa County (480) 483-9001

DR. KEVIN PHILIP THEODOROU MD

Internal Medicine

10585 N TATUM BLVD, D-137
PARADISE VALLEY, AZ 85253

Maricopa County (602) 277-2361

JOSEPH S. DOVGAN, DDS, MS. PC

Clinic/Center (Dental)

10585 N TATUM BLVD, SUITE D132
PARADISE VALLEY, AZ 85253

Maricopa County (480) 483-9001

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 Grace Mellen's NPI number?

The NPI number for Grace Mellen is 1184010852. It was assigned to this individual provider in the NPPES registry on April 9, 2015.

Where is Grace Mellen located?

Grace Mellen practices at 10585 N Tatum Blvd Suite D130, Paradise Valley, AZ 85253. The listed phone number is (602) 997-7263.

What is Grace Mellen's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

Is Grace Mellen enrolled in Medicare?

Yes. Grace Mellen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Grace Mellen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Grace Mellen reassigns Medicare benefits to United Physicians Group LLC (Phoenix, AZ). 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 Grace Mellen'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 Grace Mellen was last updated on April 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.