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MICHAEL FRANCIS MANGAHAS M.S., M.D.
NPI 1689053738
Pediatrics in Arcata, CA

Active since May 21, 2015PECOS Enrolled
1600 WEEOT WAY, ARCATA, CA 95521(707) 825-5010(707) 825-6736 Get Directions Write a Review

NPPES record last updated: August 29, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 29, 2023, Nov 15, 2018, Nov 28, 2015 (3 updates tracked since 2015).

About Michael Francis Mangahas M.s., M.d. NPPES

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

MICHAEL FRANCIS MANGAHAS M.S., M.D. (NPI 1689053738) is an individual pediatrics provider in Arcata, California, licensed in California (A145331) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1689053738
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameMICHAEL FRANCIS MANGAHASCredential: M.S., M.D.
Location Address1600 WEEOT WAYArcata, CA 95521-4734
Mailing Address1600 Weeot WayArcata, CA 95521-4734 · (707) 825-5010
Phone(707) 825-5010
Fax(707) 825-6736
Sole ProprietorYes
Enumeration DateMay 21, 2015
Last NPPES UpdateAugust 29, 20233 updates tracked since enumeration
NPPES CertifiedAugust 29, 2023
✔ NPI 1689053738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · A145331
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
1600 WEEOT WAY, Arcata, CA 95521
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1747 52nd St, Room 245Oakland, CA 94609-1809 · Phone (510) 428-3331
Location 22200 Tydd StEureka, CA 95501 · Phone (707) 269-7051 · Fax (707) 269-7054

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Francis Mangahas M.s., 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.

Medicare Billing Reassignments

3

Medicare enrollment records show Michael Mangahas reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

United Indian Health Services, Inc.
Same address
Primary Care
1600 WEEOT WAY
Arcata, CA 95521
  • Reassigned Medicare billing, California enrollment
  • 55 clinicians in this Medicare group
NPI 1497751572 (707) 825-5000
Open Door Community Health Centers
0.3 mi
Federally Qualified Health Center (FQHC)
3800 JANES RD STE 101
Arcata, CA 95521
  • Reassigned Medicare billing, California enrollment
  • 175 clinicians in this Medicare group
NPI 1922318047 (707) 822-1385
Providence Medical Foundation
8.3 mi
Surgery
2752 HARRISON AVE, SUITE A
Eureka, CA 95501
  • Reassigned Medicare billing, California enrollment
  • 1,699 clinicians in this Medicare group
NPI 1477790517 (707) 268-0190

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 95521 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
$90.32 typical visit price
range $58.87 – $176.60
Typical copayment $22.58 (range $14.71 – $44.15)
Most-billed visit code 99203
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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.

TIFFANY STROHBIN SUDRC
Counselor (Addiction (Substance Use Disorder))
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5000
ROBERTA LARA RADT-1
Counselor (Addiction (Substance Use Disorder))
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5060
JENNIFER ANN JACKSON RD
Dietitian, Registered
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5000
JAMES MICHAEL RILEY O D
Optometrist
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5000
MR. LANGDON TYRONE MARTIN
Counselor (Mental Health)
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5060
SARAH D THIBAULT LCSW
Social Worker (Clinical)
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5060
JOHN G JASO DDS
Dentist (General Practice)
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-4042
DR. ZACHERY JAMES CASTIGLIONE DDS
Dentist (General Practice)
1600 WEEOT WAY
ARCATA, CA 95521
Humboldt County (707) 825-5040

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 Michael Mangahas's NPI number?

The NPI number for Michael Mangahas is 1689053738. It was assigned to this individual provider in the NPPES registry on May 21, 2015.

Where is Michael Mangahas located?

Michael Mangahas practices at 1600 Weeot Way, Arcata, CA 95521. The listed phone number is (707) 825-5010.

What is Michael Mangahas's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Michael Mangahas enrolled in Medicare?

Yes. Michael Mangahas is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Mangahas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Mangahas reassigns Medicare benefits to 3 organizations: United Indian Health Services, Inc. (Arcata, CA), Open Door Community Health Centers (Arcata, CA) and Providence Medical Foundation (Eureka, 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 Michael Mangahas'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 Michael Mangahas was last updated on August 29, 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.