2026 NPPES data Orthopaedic Foot and Ankle Surgery Physician NPI 1194387571
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Nathaniel Ptak

Orthopaedic Foot and Ankle Surgery Physician in Sierra Vista, Arizona. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 678 in Orthopaedic Foot and Ankle Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
16
Medicare Part D claims · Orthopaedic Foot and Ankle Surgery Physician avg: 218
Industry payments
$2.8K
51 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Nathaniel Ptak filed 16 Medicare Part D claims in 2023 as a Orthopaedic Foot and Ankle Surgery Physician in Sierra Vista, Arizona.

16
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Nathaniel Ptak's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

16 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic, not verified)

Nathaniel Ptak practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Nathaniel Ptak?

Quality data not reported

NPI registry status

Active

Issued 07/05/2019

NPI 1194387571

Primary specialty

Orthopaedic Foot and Ankle Surgery Physician

Niche

678 US NPIs in this specialty

Medicare Part D claims

16 93% vs specialty avg

2023 prescription claims

Specialty avg: 218

Specialty distribution in Arizona

How Orthopaedic Foot and Ankle Surgery Physician compares to other specialties among Arizona providers

Arizona providers

Largest specialties in Arizona (% of in-state providers)

Pharmacist - 5.6%Pharmacist5.6%Behavior Technician - 5.6%Behavior Technician5.6%Family Nurse Practitioner - 4.3%Family Nurse Practitioner4.3%Physical Therapist - 4.2%Physical Therapist4.2%Speech-Language Pathologist - 3.5%Speech-Language Pathologist3.5%Student in an Organized Health Care Education/Training Program - 3.5%Student in an Organized Health Care Education/Training Program3.5%Orthopaedic Foot and Ankle Surgery Physician - 0%Orthopaedic Foot and Ankle Surgery Physician0%
Largest specialties in Arizona (% of in-state providers)

Board certification

Not published by CMS

CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Orthopaedic Foot and Ankle Surgery Physician. Verify directly:

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Nathaniel Ptak appears in the CMS NPPES registry as a Orthopaedic Foot and Ankle Surgery Physician provider at 5750 E HIGHWAY 90 STE 200, Sierra Vista, AZ, 85635, with a listed phone of (520) 263-3761. NPI 1194387571 was issued on 07/05/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Ptak most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 16 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $290 in drug spend. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Orthopaedic Foot and Ankle Surgery Physician is a narrow specialty nationwide, with 678 enrolled providers across 51 states and an average of 218 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

5750 E HIGHWAY 90 STE 200
Sierra Vista, AZ 85635

Provider Details

NPI 1194387571
Specialty Orthopaedic Foot and Ankle Surgery Physician
Gender Male
NPI Issued 07/05/2019

Hospital and facility affiliations

Facilities where Nathaniel Ptak bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Sierra Vista Regional Health Center Medical Group LLC
Sierra Vista, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Nathaniel Ptak. Source: openpaymentsdata.cms.gov.

Total received

$2.8K

Largest payer

Arthrex, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

16
Total Claims
$290
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
16
Total Day Supply
217
Generic Drug Cost
$107

Patient Demographics

Average Patient Age
76.3 years
Avg HCC Risk Score
0.99

Orthopaedic Foot and Ankle Surgery Physician Overview

How Nathaniel Ptak fits within the Orthopaedic Foot and Ankle Surgery Physician landscape nationally.

678
Orthopaedic Foot and Ankle Surgery Physician Providers in US
51
States with Orthopaedic Foot and Ankle Surgery Physician
218
Avg Claims per Provider

Nathaniel Ptak's 16 claims are below the specialty average of 218.

Nearby Orthopaedic Foot and Ankle Surgery Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as Ptak.

Compare Orthopaedic Foot and Ankle Surgery Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Arizona medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Orthopaedic Foot and Ankle Surgery Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Nathaniel Ptak's specialty?
Nathaniel Ptak specializes in Orthopaedic Foot and Ankle Surgery Physician and practices in Sierra Vista, Arizona.
How much does Nathaniel Ptak prescribe under Medicare Part D?
In 2023, Nathaniel Ptak wrote 16 Medicare Part D claims totaling $290 in drug costs for N/A beneficiaries.
Where is Nathaniel Ptak located?
Nathaniel Ptak is located at 5750 E HIGHWAY 90 STE 200, Sierra Vista, AZ, 85635. Phone: (520) 263-3761.
What is Nathaniel Ptak's NPI number?
Nathaniel Ptak's National Provider Identifier (NPI) is 1194387571, issued on 07/05/2019.
How many Orthopaedic Foot and Ankle Surgery Physician providers are there in the US?
There are 678 Orthopaedic Foot and Ankle Surgery Physician providers across 51 states in the US. The average Orthopaedic Foot and Ankle Surgery Physician provider writes 218 Medicare Part D claims per year.
Does Nathaniel Ptak accept Medicare?
Nathaniel Ptak appears in CMS Medicare data with 16 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nathaniel Ptak's credentials?
Nathaniel Ptak's NPI is 1194387571. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.