NATHAN THOMAS WALTON MD
NPI 1992498588
Internal Medicine in Tucson, AZ

Q: What is Nathan Walton's NPI number?

The NPI number for Nathan Walton is 1992498588. It was assigned to this individual provider in the NPPES registry on May 30, 2023.

Q: What is Nathan Walton's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Walton was last updated on September 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 May 30, 2023PECOS EnrolledAccepts Medicare Assignment

7901 E 22ND ST, TUCSON, AZ 85710(520) 694-8888(520) 694-8466 Get Directions Write a Review

NPPES record last updated: September 6, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 6, 2023, Jul 28, 2023, May 30, 2023 (3 updates tracked since 2023).

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About Nathan Thomas Walton Md NPPES

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

NATHAN THOMAS WALTON MD (NPI 1992498588) is an individual internal medicine provider in Tucson, Arizona, licensed in Arizona (R80259) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2023).

NPPES Registry Identity

NPI1992498588

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameNATHAN THOMAS WALTONCredential: MD

Location Address7901 E 22ND STTucson, AZ 85710-8509

Mailing Address7901 E 22nd StTucson, AZ 85710-8509 · (520) 694-8888 · Fax (520) 694-8466

Phone(520) 694-8888

Fax(520) 694-8466

Sole ProprietorNo

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2023

Enumeration DateMay 30, 2023

Last NPPES UpdateSeptember 6, 20233 updates tracked since enumeration

NPPES CertifiedAugust 19, 2023

✔ NPI 1992498588 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in AZ · R80259

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

7901 E 22ND ST, Tucson, AZ 85710

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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 and accepts Medicare assignment

Nathan Thomas Walton Md 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 ID3678933413

PECOS Enrollment IDI20260625003954

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 Nathan Walton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Banner-University Medical Group

2.5 mi

Nutrition, Education

535 N WILMOT RD STE 101
Tucson, AZ 85711

Reassigned Medicare billing, Arizona enrollment
1,514 clinicians in this Medicare group

NPI 1932708328 (520) 694-5437

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85710 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.

Other Providers at the Same Location NPPES 20

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

MR. DUY KHOA NGUYEN DO

Internal Medicine