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SPENCER WILLIAM HALVORSON
NPI 1679318844
Physician Assistant in Farmington, NM

Active since June 28, 2024PECOS EnrolledAccepts Medicare Assignment
2300 E 30TH ST STE 101, FARMINGTON, NM 87401(505) 208-6280 Get Directions Write a Review

NPPES record last updated: May 26, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 26, 2026, Jun 28, 2024 (2 updates tracked since 2024).

About Spencer William Halvorson NPPES

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

SPENCER WILLIAM HALVORSON (NPI 1679318844) is an individual physician assistant in Farmington, New Mexico, licensed in New Mexico (PA2024-0070) and active in the NPI registry since June 2024. He is enrolled in Medicare PECOS, is affiliated with San Juan Regional Medical Center Inc, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1679318844
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameSPENCER WILLIAM HALVORSON
Location Address2300 E 30TH ST STE 101Farmington, NM 87401-8990
Mailing AddressPo Box 844088Dallas, TX 75284-4088 · (505) 609-2258 · Fax (505) 609-2259
Phone(505) 208-6280
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJune 28, 2024
Last NPPES UpdateMay 26, 20262 updates tracked since enumeration
NPPES CertifiedMay 26, 2026
✔ NPI 1679318844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in NM · PA2024-0070
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
2300 E 30TH ST STE 101, Farmington, NM 87401
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan, Ambetter of Oklahoma.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Spencer William Halvorson 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 ID1759820855
PECOS Enrollment IDI20240903001218
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.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Replacement of knee joint, both sides of knee 27447
A bilateral knee joint replacement is a procedure where the damaged parts of both your knee joints are replaced with artificial parts. It aims to relieve pain and improve mobility. The process involves a surgical operation under anesthesia.
13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

San Juan Regional Medical Center Inc

Acute Care Hospitals · Farmington, NM
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number320005
Location801 West Maple StreetFarmington, NM 87401 · San Juan County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 87401 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
$84.79 typical visit price
range $54.26 – $166.80
Typical copayment $21.19 (range $13.56 – $41.70)
Most-billed visit code 99203
Established Patient
$68.00 typical visit price
range $17.00 – $135.35
Typical copayment $17.00 (range $4.25 – $33.83)
Most-billed visit code 99213
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 6

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

TANNER FOSTER
Physician Assistant
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (505) 208-6280
DR. RICHARD LAWRENCE LAWTON M.D.
Orthopaedic Surgery
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (053) 271-4005
JAREN LAGRECA M.D.
Orthopaedic Surgery
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (505) 208-6280
TYSON CHRISTENSEN M.D.
Orthopaedic Surgery
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (505) 208-6280
DR. JONATHAN BRENT HANCOCK D.O.
Orthopaedic Surgery
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (505) 327-1400
ORTHOPEDIC ASSOCIATES PA
Orthopaedic Surgery
2300 E 30TH ST STE 101
FARMINGTON, NM 87401
San Juan County (505) 327-1400

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 Spencer Halvorson's NPI number?

The NPI number for Spencer Halvorson is 1679318844. It was assigned to this individual provider in the NPPES registry on June 28, 2024.

Where is Spencer Halvorson located?

Spencer Halvorson practices at 2300 E 30th St Ste 101, Farmington, NM 87401. The listed phone number is (505) 208-6280.

What is Spencer Halvorson's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Spencer Halvorson enrolled in Medicare?

Yes. Spencer Halvorson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Spencer Halvorson accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Superior HealthPlan and Ambetter of Oklahoma list Spencer Halvorson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Spencer Halvorson affiliated with any hospitals?

According to CMS data, Spencer Halvorson is affiliated with San Juan Regional Medical Center Inc.

When was this NPI record last updated?

The NPPES record for Spencer Halvorson was last updated on May 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.