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ANDREW JAMES OVERHISER M.D.
NPI 1679789549
Internal Medicine - Gastroenterology in Flagstaff, AZ

Active since May 15, 2007PECOS EnrolledAccepts Medicare Assignment
67.72/100
CMS Quality Rating
1215 N BEAVER ST, FLAGSTAFF, AZ 86001(928) 773-2200(928) 773-2300 Get Directions Write a Review

NPPES record last updated: December 12, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Andrew James Overhiser M.d. NPPES

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

ANDREW JAMES OVERHISER M.D. (NPI 1679789549) is an individual gastroenterology provider in Flagstaff, Arizona, licensed in Arizona (42636) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (2004).

NPPES Registry Identity

NPI1679789549
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameANDREW JAMES OVERHISERCredential: M.D.
Location Address1215 N BEAVER STFlagstaff, AZ 86001-3120
Mailing Address1895 N Jasper Dr Ste 1Flagstaff, AZ 86001-1632 · (928) 773-2332 · Fax (928) 213-6440
Phone(928) 773-2200
Fax(928) 773-2300
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2004
Enumeration DateMay 15, 2007
Last NPPES UpdateDecember 12, 2024
NPPES CertifiedDecember 12, 2024
✔ NPI 1679789549 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in AZ · 42636
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
1215 N BEAVER ST, Flagstaff, AZ 86001
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc. and more.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

Andrew James Overhiser M.d. 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 ID6103942677
PECOS Enrollment IDI20100922000635
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 10

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
106 services106 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
82 services81 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
73 services73 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
68 services50 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
41 services41 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
31 services27 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86001 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

67.72/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.49
Improvement Activities40
Cost37.09

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.

DR. JAMES MALCOLM GALLOWAY MD
Internal Medicine
1215 N BEAVER ST, SUITE 201
FLAGSTAFF, AZ 86001
Coconino County (028) 214-3920
ANGELA HANSEN RD, IBCLC
Dietitian, Registered
1215 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2200
DR. JOHN BLANCHARD MARTIN PH.D
Psychologist (Clinical)
1215 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2200
DR. MEAGHAN ELIZABETH RALPH DPT
Physical Therapist
1215 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2125
WILLIAM DREXLER
Physical Therapist
1215 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2125
MARK F CARROLL MD
Pediatrics
1215 N BEAVER ST, SUITE 201
FLAGSTAFF, AZ 86001
Coconino County (928) 214-3920
NICOLE RENEE SYDOW M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1215 N BEAVER ST, SUITE 203
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2150
DR. TIM BUSCHMANN
Psychologist
1215 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 213-6415

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 Andrew Overhiser's NPI number?

The NPI number for Andrew Overhiser is 1679789549. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Where is Andrew Overhiser located?

Andrew Overhiser practices at 1215 N Beaver St, Flagstaff, AZ 86001. The listed phone number is (928) 773-2200.

What is Andrew Overhiser's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Andrew Overhiser enrolled in Medicare?

Yes. Andrew Overhiser 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 Andrew Overhiser accept?

Health plans from Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Imperial Insurance Companies, Inc. and UnitedHealthcare list Andrew Overhiser 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.

When was this NPI record last updated?

The NPPES record for Andrew Overhiser was last updated on December 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.