Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MARY L DELDUCA MD
NPI 1104883172
Psychiatry & Neurology - Psychiatry in Flagstaff, AZ

Q: What is Mary Delduca's NPI number?

The NPI number for Mary Delduca is 1104883172. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Q: What is Mary Delduca's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Q: Is Mary Delduca enrolled in Medicare?

No. Mary Delduca has opted out of Medicare through April 22, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Mary Delduca was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 days 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 26, 2006Opted out of Medicare · through Apr 22, 2028

1515 N SAN FRANCISCO ST, FLAGSTAFF, AZ 86001(928) 774-1538(928) 774-2801 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mary L Delduca Md NPPES

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

DR. MARY L DELDUCA MD (NPI 1104883172) is an individual psychiatry provider in Flagstaff, Arizona, licensed in Arizona (20974) and active in the NPI registry since April 2006. She has opted out of Medicare through April 22, 2028 and remains eligible to order and refer.

NPPES Registry Identity

NPI1104883172

Entity TypeIndividualFemale

Primary Taxonomy2084P0800X

Provider Legal NameDR. MARY L DELDUCACredential: MD

Location Address1515 N SAN FRANCISCO STFlagstaff, AZ 86001

Mailing Address1515 N San Francisco StFlagstaff, AZ 86001 · (928) 774-1538 · Fax (928) 774-2801

Phone(928) 774-1538

Fax(928) 774-2801

Sole ProprietorNo

Enumeration DateApril 26, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1104883172 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians

Taxonomy Code2084P0800X

License✔ Licensed in AZ · 20974

Definition

A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

1515 N SAN FRANCISCO ST, Flagstaff, AZ 86001

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Dr. Mary L Delduca Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 22, 2014 through April 22, 2028.

Opt-Out Effective DateApril 22, 2014

Opt-Out In Effect ThroughApril 22, 2028Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86001 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$168.60 typical visit price

range $55.44 – $168.60

Typical copayment $42.15 (range $13.86 – $42.15)

Most-billed visit code 99205

Established Patient

$69.24 typical visit price

range $17.72 – $137.41

Typical copayment $17.31 (range $4.43 – $34.35)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

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

DR. SARAH ALTENBERG PSYCHIATRY, PLLC

Psychiatry & Neurology (Psychiatry)