DR. JUSTIN BRADLEY NAST MD
NPI 1669465449
Preventive Medicine - Aerospace Medicine in Fairfield, CA

Q: What is Justin Nast's NPI number?

The NPI number for Justin Nast is 1669465449. It was assigned to this individual provider in the NPPES registry on August 26, 2005.

Q: What is Justin Nast's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Aerospace Medicine, with taxonomy code 2083A0100X.

Q: When was this NPI record last updated?

The NPPES record for Justin Nast was last updated on January 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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 August 26, 2005PECOS Enrolled

2470 HILBORN RD STE 100, FAIRFIELD, CA 94534(707) 646-4600 Get Directions Write a Review

NPPES record last updated: January 18, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 30, 2023, Apr 11, 2017 (2 updates tracked since 2017).

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About Dr. Justin Bradley Nast Md NPPES

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

DR. JUSTIN BRADLEY NAST MD (NPI 1669465449) is an individual aerospace medicine provider in Fairfield, California, licensed in California (C172660) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Wright-patterson Afb.

NPPES Registry Identity

NPI1669465449

Entity TypeIndividualMale

Primary Taxonomy2083A0100X

Provider Legal NameDR. JUSTIN BRADLEY NASTCredential: MD

Location Address2470 HILBORN RD STE 100Fairfield, CA 94534-1100

Mailing Address88 Mdg/sghj, 4881 Sugar Maple DrWright-patterson Afb, OH 45433 · (623) 330-5985

Phone(707) 646-4600

Sole ProprietorYes

Enumeration DateAugust 26, 2005

Last NPPES UpdateJanuary 18, 20242 updates tracked since enumeration

NPPES CertifiedJanuary 16, 2024

✔ NPI 1669465449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPreventive Medicine · Aerospace MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2083A0100X

License✔ Licensed in CA · C172660

Definition

Aerospace medicine focuses on the clinical care, research, and operational support of the health, safety, and performance of crewmembers and passengers of air and space vehicles, together with the support personnel who assist operation of such vehicles. This population often works and lives in remote, isolated, extreme, or enclosed environments under conditions of physical and psychological stress. Practitioners strive for an optimal human-machine match in occupational settings rich with environmental hazards and engineering countermeasures.

Also ListedObstetrics & Gynecology · GynecologyTaxonomy 207VG0400X · License C172660 (CA)

Also ListedPreventive Medicine · Preventive Medicine/Occupational Environmental MedicineTaxonomy 2083P0500X · License C172660 (CA)

2470 HILBORN RD STE 100, Fairfield, CA 94534

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Secondary Practice Location 1

Location 188 MDG/SGHJ, 4881 Sugar Maple DrWright-Patterson AFB, OH 45433 · Phone (623) 330-5985

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Justin Bradley Nast Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

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

Northbay Healthcare Group

0.9 mi

Addiction Medicine

1860 PENNSYLVANIA AVE STE 230
Fairfield, CA 94533

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Northbay Physicians Surgery Center, LLC
516 clinicians in this Medicare group

NPI 1780736736 (707) 646-4370

Northbay Health Medical Foundation

5.6 mi

Internal Medicine

4500 BUSINESS CENTER DR
Fairfield, CA 94534

Reassigned Medicare billing, California enrollment
225 clinicians in this Medicare group

NPI 1760283527 (707) 646-3110

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 94534 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

$145.83 typical visit price

range $65.02 – $191.95

Typical copayment $36.45 (range $16.25 – $47.98)

Most-billed visit code 99204

Established Patient

$113.05 typical visit price

range $21.86 – $157.69

Typical copayment $28.26 (range $5.46 – $39.42)

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 2

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

SWETA S RANA PA-C

Physician Assistant

2470 HILBORN RD STE 100
FAIRFIELD, CA 94534

Solano County (707) 646-4600

SAMANTHA LUANNE GUY PA

Physician Assistant

2470 HILBORN RD STE 100
FAIRFIELD, CA 94534

Solano County (707) 646-6400

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 Justin Nast's NPI number?

The NPI number for Justin Nast is 1669465449. It was assigned to this individual provider in the NPPES registry on August 26, 2005.

Where is Justin Nast located?

Justin Nast practices at 2470 Hilborn Rd Ste 100, Fairfield, CA 94534. The listed phone number is (707) 646-4600.

What is Justin Nast's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Aerospace Medicine, with taxonomy code 2083A0100X.

Is Justin Nast enrolled in Medicare?

Yes. Justin Nast is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Justin Nast's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Justin Nast reassigns Medicare benefits to 2 organizations: Northbay Healthcare Group (Fairfield, CA) and Northbay Health Medical Foundation (Fairfield, CA). 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 Justin Nast's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Justin Nast was last updated on January 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.