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DR. DANIEL CLAYTON MCMAHON M.D.
NPI 1700181401
Emergency Medicine in Napa, CA

Active since January 11, 2011PECOS Enrolled
4590 DRY CREEK RD, NAPA, CA 94558(707) 252-1239 Get Directions Write a Review

NPPES record last updated: January 11, 2011. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Daniel Clayton Mcmahon M.d. NPPES

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

DR. DANIEL CLAYTON MCMAHON M.D. (NPI 1700181401) is an individual emergency medicine provider in Napa, California, licensed in California (C33497) and active in the NPI registry since January 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700181401
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameDR. DANIEL CLAYTON MCMAHONCredential: M.D.
Location Address4590 DRY CREEK RDNapa, CA 94558-9596
Mailing Address4590 Dry Creek RdNapa, CA 94558-9596 · (707) 252-1239
Phone(707) 252-1239
Sole ProprietorYes
Enumeration DateJanuary 11, 2011
✔ NPI 1700181401 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in CA · C33497
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
4590 DRY CREEK RD, Napa, CA 94558
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Other Identifiers 1

Medicare UPINA35298CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Daniel Clayton Mcmahon M.d. 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94558 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
$98.97 typical visit price
range $65.08 – $192.16
Typical copayment $24.74 (range $16.27 – $48.04)
Most-billed visit code 99203
Established Patient
$113.15 typical visit price
range $21.86 – $157.83
Typical copayment $28.28 (range $5.46 – $39.45)
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.

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 Daniel Mcmahon's NPI number?

The NPI number for Daniel Mcmahon is 1700181401. It was assigned to this individual provider in the NPPES registry on January 11, 2011.

Where is Daniel Mcmahon located?

Daniel Mcmahon practices at 4590 Dry Creek Rd, Napa, CA 94558. The listed phone number is (707) 252-1239.

What is Daniel Mcmahon's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Daniel Mcmahon enrolled in Medicare?

Yes. Daniel Mcmahon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Daniel Mcmahon was last updated on January 11, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.