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GRACE ZLAKET MATTA M.D.
NPI 1679564512
Internal Medicine - Endocrinology, Diabetes & Metabolism in Scottsdale, AZ

Active since October 31, 2005Opted out of Medicare · through Sep 21, 2026CLIA 03D2011360 · Waiver
9336 E RAINTREE DR, STE150, SCOTTSDALE, AZ 85260(480) 219-5597(480) 219-5547 Get Directions Write a Review

NPPES record last updated: October 23, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Grace Zlaket Matta M.d. NPPES

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

GRACE ZLAKET MATTA M.D. (NPI 1679564512) is an individual endocrinology, diabetes & metabolism provider in Scottsdale, Arizona, licensed in Arizona (23480) and active in the NPI registry since October 2005. She has opted out of Medicare through September 21, 2026 and remains eligible to order and refer and holds a CLIA Waiver certificate valid through August 15, 2026.

NPPES Registry Identity

NPI1679564512
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameGRACE ZLAKET MATTACredential: M.D.
Location Address9336 E RAINTREE DR, STE150Scottsdale, AZ 85260-7322
Mailing Address9336 E Raintree Dr, Ste150Scottsdale, AZ 85260-7322 · (480) 219-5597 · Fax (480) 219-5547
Phone(480) 219-5597
Fax(480) 219-5547
Sole ProprietorNo
Enumeration DateOctober 31, 2005
Last NPPES UpdateOctober 23, 2024
NPPES CertifiedOctober 23, 2024
✔ NPI 1679564512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in AZ · 23480
Definition

An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.

9336 E RAINTREE DR, Scottsdale, AZ 85260
Open in Google Maps ↗

Other Identifiers 1

Medicaid326480AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Grace Zlaket Matta M.d. 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 September 21, 2022 through September 21, 2026.

Opt-Out Effective DateSeptember 21, 2022
Opt-Out In Effect ThroughSeptember 21, 2026Opt-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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 03D2011360

Grace Zlaket-Matta MD, LLC · Scottsdale, AZ
Active · expires Aug 15, 2026
CLIA Number03D2011360
Laboratory TypePhysician Office
Certificate Effective DateAugust 16, 2024
Certificate Expiration DateAugust 15, 2026
Laboratory DirectorGrace Zlaket-Matta
Laboratory Phone(480) 219-5597
Laboratory LocationGrace Zlaket-Matta MD, LLC9336 E Raintree Dr, Ste 150, Scottsdale, AZ 85260
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85260 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Diabetes: Eye Exam
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period
99%113 patients4/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 9

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
5 suppliers67 claims771 services$18.20 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
5 suppliers63 claims1,760 services$2.32 avg. paid by Medicare
Supply allowance for adjunctive continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service A4238
DME-Medical/Surgical Supplies · category DA000N
2 suppliers25 claims25 services$173.46 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
55 suppliers116 claims478 services$6.32 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
16 suppliers21 claims47 services$1.10 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
5 suppliers59 claims59 services$298.11 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

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

DR. IYAD SYOUFI M.D.
Internal Medicine
9336 E RAINTREE DR, SUITE 150
SCOTTSDALE, AZ 85260
Maricopa County (480) 219-5597
2020 IMAGE SCOTTSDALE
Optometrist
9336 E RAINTREE DR, SUITE #140
SCOTTSDALE, AZ 85260
Maricopa County (480) 614-0055

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 Zlaket Matta's NPI number?

The NPI number for Grace Zlaket Matta is 1679564512. It was assigned to this individual provider in the NPPES registry on October 31, 2005.

Where is Grace Zlaket Matta located?

Grace Zlaket Matta practices at 9336 E Raintree Dr Ste150, Scottsdale, AZ 85260. The listed phone number is (480) 219-5597.

What is Grace Zlaket Matta's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Grace Zlaket Matta enrolled in Medicare?

No. Grace Zlaket Matta has opted out of Medicare through September 21, 2026. 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.

Does Grace Zlaket Matta hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 03D2011360) is associated with this NPI, valid through August 15, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Grace Zlaket Matta accept?

Health plans from Ambetter from Arizona Complete Health and Blue Cross Blue Shield of Arizona list Grace Zlaket Matta as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Grace Zlaket Matta was last updated on October 23, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.