GERONIMO SAHAGUN MD
NPI 1043292865
Internal Medicine - Gastroenterology in Anchorage, AK

Q: What is Geronimo Sahagun's NPI number?

The NPI number for Geronimo Sahagun is 1043292865. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Q: What is Geronimo Sahagun's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Geronimo Sahagun was last updated on March 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 November 17, 2005PECOS EnrolledAccepts Medicare Assignment

78.49/100

CMS Quality Rating

2841 DEBARR ROAD, SUITE 50, ANCHORAGE, AK 99508(907) 276-2811(907) 276-2810 Get Directions Write a Review

NPPES record last updated: March 25, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Geronimo Sahagun Md NPPES

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

GERONIMO SAHAGUN MD (NPI 1043292865) is an individual gastroenterology provider in Anchorage, Alaska, licensed in Alaska (3857) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Wasilla, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (1990).

NPPES Registry Identity

NPI1043292865

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameGERONIMO SAHAGUNCredential: MD

Location Address2841 DEBARR ROAD, SUITE 50Anchorage, AK 99508-2932

Mailing Address2841 Debarr Road, Suite 50Anchorage, AK 99508-2932 · (907) 276-2811 · Fax (907) 276-2810

Phone(907) 276-2811

Fax(907) 276-2810

Sole ProprietorNo

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 1990

Enumeration DateNovember 17, 2005

Last NPPES UpdateMarch 25, 2019

✔ NPI 1043292865 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 AK · 3857

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.

2841 DEBARR ROAD, Anchorage, AK 99508

Open in Google Maps ↗

Secondary Practice Location 1

Location 13505 E Meridian Park Loop Ste 220Wasilla, AK 99654-7294 · Phone (907) 276-2811 · Fax (907) 276-2810

Other Identifiers 1

MedicaidMD38571AK

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Geronimo Sahagun Md 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 ID5799760526

PECOS Enrollment IDI20040625001001

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 Reassignment

Medicare enrollment records show Geronimo Sahagun reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine Associates, LLC

Same address

Gastroenterology

2841 DEBARR RD STE 50
Anchorage, AK 99508

Reassigned Medicare billing, Alaska enrollment
11 clinicians in this Medicare group

NPI 1043294648 (907) 276-2811

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 13

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

233 services184 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.

209 services202 patients

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.

107 services107 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.

87 services87 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.

49 services47 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

48 services48 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

43 services43 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

30 services30 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

28 services28 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

26 services26 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

22 services15 patients

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

14 services13 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 99508 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

$168.20 typical visit price

range $71.33 – $222.64

Typical copayment $42.05 (range $17.83 – $55.66)

Most-billed visit code 99204

Established Patient

$128.73 typical visit price

range $21.84 – $181.48

Typical copayment $32.18 (range $5.46 – $45.37)

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.

78.49/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

86.22

Improvement Activities

Cost

42.04

Other Providers at the Same Location NPPES 11

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

BETH ANN BAKER MD

Internal Medicine (Pulmonary Disease)

2841 DEBARR ROAD, SUITE 50
ANCHORAGE, AK 99508

Anchorage Municipality (907) 276-2811

ROLAND E. GOWER, MD, APC

Surgery

2841 DEBARR ROAD, SUITE #41
ANCHORAGE, AK 99508

Anchorage Municipality (907) 279-3564

LABORATORY CORPORATION OF AMERICA

Clinical Medical Laboratory

2841 DEBARR ROAD, SUITE 25
ANCHORAGE, AK 99508

Anchorage Municipality (907) 575-5471

MICHAEL ROBERT VALANTAS DO

Internal Medicine (Gastroenterology)

2841 DEBARR ROAD, SUITE 50
ANCHORAGE, AK 99508

Anchorage Municipality (907) 276-2811

CHARLES ROY SHANNON MD

Internal Medicine (Gastroenterology)

2841 DEBARR ROAD, SUITE 50
ANCHORAGE, AK 99508

Anchorage Municipality (907) 276-2811

PAUL JOSEPH GIONET RPH.

Pharmacist

2841 DEBARR ROAD, #20
ANCHORAGE, AK 99508

Anchorage Municipality (907) 279-2425

DR. DOUGLAS BADIE HAGHIGHI MD

Internal Medicine (Gastroenterology)

2841 DEBARR ROAD, SUITE 50
ANCHORAGE, AK 99508

Anchorage Municipality (907) 276-2811

REGINA S CHENNAULT MD PC

Surgery

2841 DEBARR ROAD, SUITE 42
ANCHORAGE, AK 99508

Anchorage Municipality (907) 264-1204

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 Geronimo Sahagun's NPI number?

The NPI number for Geronimo Sahagun is 1043292865. It was assigned to this individual provider in the NPPES registry on November 17, 2005.

Where is Geronimo Sahagun located?

Geronimo Sahagun practices at 2841 Debarr Road Suite 50, Anchorage, AK 99508. The listed phone number is (907) 276-2811.

What is Geronimo Sahagun's specialty?

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

Is Geronimo Sahagun enrolled in Medicare?

Yes. Geronimo Sahagun 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.

Which organization bills Medicare for Geronimo Sahagun's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Geronimo Sahagun reassigns Medicare benefits to Internal Medicine Associates, LLC (Anchorage, AK). The 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 Geronimo Sahagun's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Geronimo Sahagun accept?

Health plans from Moda Health Plan, Inc. and Premera Blue Cross Blue Shield of Alaska list Geronimo Sahagun 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 Geronimo Sahagun was last updated on March 25, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.