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NATHANIEL A PTAK
NPI 1194387571
Podiatrist - Foot & Ankle Surgery in Sierra Vista, AZ

Active since July 05, 2019PECOS EnrolledAccepts Medicare Assignment
5750 E HIGHWAY 90 STE 200, SIERRA VISTA, AZ 85635(520) 263-3761(520) 263-3779 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 26, 2025, Jul 20, 2021, Jun 30, 2021 and 1 more (4 updates tracked since 2019).

About Nathaniel A Ptak NPPES

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

NATHANIEL A PTAK (NPI 1194387571) is an individual foot & ankle surgery provider in Sierra Vista, Arizona, licensed in Arizona (POD001108) and active in the NPI registry since July 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of William M. Scholl College Of Podiatric Medicine (2019).

NPPES Registry Identity

NPI1194387571
Entity TypeIndividualMale
Primary Taxonomy213ES0103X
Provider Legal NameNATHANIEL A PTAK
Location Address5750 E HIGHWAY 90 STE 200Sierra Vista, AZ 85635-9113
Mailing Address5750 E Highway 90 Ste 200Sierra Vista, AZ 85635-9113 · (520) 263-3761
Phone(520) 263-3761
Fax(520) 263-3779
Sole ProprietorNo
Medical School CMSWilliam M. Scholl College Of Podiatric MedicineGraduated 2019
Enumeration DateJuly 5, 2019
Last NPPES UpdateJune 26, 20254 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
✔ NPI 1194387571 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPodiatrist · Foot & Ankle SurgeryPodiatric Medicine & Surgery Service Providers
Taxonomy Code213ES0103X
License✔ Licensed in AZ · POD001108
Also ListedOrthopaedic Surgery · Foot and Ankle SurgeryTaxonomy 207XX0004X · License 12366058-0501 (UT)
5750 E HIGHWAY 90 STE 200, Sierra Vista, AZ 85635
Open in Google Maps ↗

Secondary Practice Locations 2

Location 15121 S Cottonwood StMurray, UT 84107-5701 · Phone (801) 507-7000
Location 21670 Clairmont RdDecatur, GA 30033-4004 · Phone (404) 321-6111

Accepted Insurance

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

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

Nathaniel A Ptak 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.

PECOS PAC ID9830536804
PECOS Enrollment IDI20240710004710
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 Reassignments

2

Medicare enrollment records show Nathaniel Ptak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sierra Vista Regional Health Center Medical Group LLC
0.1 mi
Family Medicine
5750 E HIGHWAY 90, SUITE 200
Sierra Vista, AZ 85635
  • Reassigned Medicare billing, Arizona enrollment
  • 128 clinicians in this Medicare group
NPI 1043575483 (520) 263-3979
The Southeast Permanente Medical Group
1,511 mi
Internal Medicine
3495 PIEDMONT ROAD NE, NINE PIEDMONT CENTER
Atlanta, GA 30305
  • Reassigned Medicare billing, Georgia enrollment
  • 1,389 clinicians in this Medicare group
NPI 1245266956 (404) 364-3821

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 3

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
28 services24 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
24 services24 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
11 services11 patients

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.

MS. SHERRY ELIZABETH HRON APRN FNP-BC
Nurse Practitioner (Family)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3500
JARED LAVELL HAYMORE PA-C
Physician Assistant (Surgical)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3500
RISE GOLD APRN, FNP
Nurse Practitioner (Women's Health)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3620
SIERRA VISTA REGIONAL HEALTH CENTER MEDICAL GROUP LLC
Clinic/Center (Rural Health)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3762
MRS. ALYSSA ROSE KNAPP PA-C
Physician Assistant (Medical)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3762
MRS. ABBY MARIE ALVAREZ
Physician Assistant
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 253-3383
DR. FREDERIQUE P. DELHAYE M.D.
Psychiatry & Neurology (Behavioral Neurology & Neuropsychiatry)
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3500
MCKAY REES TINGEY PA-C
Physician Assistant
5750 E HIGHWAY 90 STE 200
SIERRA VISTA, AZ 85635
Cochise County (520) 263-3500

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 Nathaniel Ptak's NPI number?

The NPI number for Nathaniel Ptak is 1194387571. It was assigned to this individual provider in the NPPES registry on July 5, 2019.

Where is Nathaniel Ptak located?

Nathaniel Ptak practices at 5750 E Highway 90 Ste 200, Sierra Vista, AZ 85635. The listed phone number is (520) 263-3761.

What is Nathaniel Ptak's specialty?

The primary specialty registered for this NPI is Podiatrist, specializing in Foot & Ankle Surgery, with taxonomy code 213ES0103X.

Is Nathaniel Ptak enrolled in Medicare?

Yes. Nathaniel Ptak 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 Nathaniel Ptak's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Ptak reassigns Medicare benefits to 2 organizations: Sierra Vista Regional Health Center Medical Group LLC (Sierra Vista, AZ) and The Southeast Permanente Medical Group (Atlanta, GA). 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 Nathaniel Ptak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nathaniel Ptak accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and UnitedHealthcare list Nathaniel Ptak 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 Nathaniel Ptak was last updated on June 26, 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.