DR. GREGORY WILLIAM MUNSON M.D.
NPI 1982610937
Internal Medicine - Gastroenterology in Bellingham, WA

Q: What is Gregory Munson's NPI number?

The NPI number for Gregory Munson is 1982610937. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Q: What is Gregory Munson'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 Gregory Munson was last updated on May 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 July 31, 2006PECOS EnrolledAccepts Medicare Assignment

87.2/100

CMS Quality Rating

2979 SQUALICUM PKWY, SUITE 301, BELLINGHAM, WA 98225(360) 734-1420(360) 756-6666 Get Directions Write a Review

NPPES record last updated: May 16, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Gregory William Munson M.d. NPPES

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

DR. GREGORY WILLIAM MUNSON M.D. (NPI 1982610937) is an individual gastroenterology provider in Bellingham, Washington, licensed in Washington (MD60200734) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Island Hospital, and is a graduate of University Of Chicago, Pritzker School Of Medicine (2003).

NPPES Registry Identity

NPI1982610937

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. GREGORY WILLIAM MUNSONCredential: M.D.

Location Address2979 SQUALICUM PKWY, SUITE 301Bellingham, WA 98225-1811

Mailing Address2979 Squalicum Pkwy, Suite 301Bellingham, WA 98225-1811 · (360) 734-1420 · Fax (360) 756-6666

Phone(360) 734-1420

Fax(360) 756-6666

Sole ProprietorNo

Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 2003

Enumeration DateJuly 31, 2006

Last NPPES UpdateMay 16, 2017

✔ NPI 1982610937 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 WA · MD60200734

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.

2979 SQUALICUM PKWY, Bellingham, WA 98225

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Other Identifiers 3

MedicaidENROLLEDMN

Medicare PIN100000769MN

OtherP00873586MN · Railroad Medicare

Accepted Insurance

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

Dr. Gregory William Munson 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 ID8224100953

PECOS Enrollment IDI20110810000031

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 Gregory Munson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Northwest Gastroenterology Professional LLC

1.3 mi

Gastroenterology

3111 WOBURN ST STE 201
Bellingham, WA 98226

Reassigned Medicare billing, Washington enrollment
13 clinicians in this Medicare group

NPI 1033278411 (360) 734-1420

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 15

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.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

478 services266 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.

208 services206 patients

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

116 services114 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.

96 services96 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.

81 services79 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.

57 services54 patients

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.

33 services30 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.

30 services30 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.

19 services19 patients

Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less 96365

This is a procedure where a medical professional inserts a small tube into your vein to deliver medication, nutrients, or fluids directly into your bloodstream. This can be for treatment, prevention, or diagnosis. The process typically takes less than an hour.

18 services16 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.

18 services16 patients

Insertion of guide wire with dilation of esophagus using a flexible endoscope 43248

This is a procedure where a thin tube, called an endoscope, is gently passed through your mouth into your esophagus. A guide wire is then inserted to help widen any narrow areas. This helps improve swallowing and reduce discomfort.

17 services17 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

14 services12 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.

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Island Hospital

Acute Care Hospitals · Anacortes, WA

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500007

Location1211 24th StreetAnacortes, WA 98221 · Skagit County

Emergency services Birthing friendly

St Joseph Hospital

Acute Care Hospitals · Bellingham, WA

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number500030

Location2901 Squalicum ParkwayBellingham, WA 98225 · Whatcom County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98225 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

$130.99 typical visit price

range $57.27 – $172.80

Typical copayment $32.74 (range $14.31 – $43.20)

Most-billed visit code 99204

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

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.

87.2/100

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

Scored as part of a group practice

Quality

100

Promoting Interoperability

100

Improvement Activities

Cost

57.35

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.

DAVID FLARRY NP

Nurse Practitioner

2979 SQUALICUM PKWY
BELLINGHAM, WA 98225

Whatcom County (360) 734-2700

HANNAH SHEININ MD

Internal Medicine (Gastroenterology)

2979 SQUALICUM PKWY, SUITE 301
BELLINGHAM, WA 98225

Whatcom County (360) 734-1420

JESSICA M S VITTENGL ARNP

Nurse Practitioner

2979 SQUALICUM PKWY, SUITE 101
BELLINGHAM, WA 98225

Whatcom County (360) 734-2700

DR. DAVID DROULLARD MD

Colon & Rectal Surgery

2979 SQUALICUM PKWY
BELLINGHAM, WA 98225

Whatcom County (360) 788-8200

TODD N WITTE M.D.

Internal Medicine (Gastroenterology)

2979 SQUALICUM PKWY, SUITE 301
BELLINGHAM, WA 98225

Whatcom County (360) 734-1420

PETER ALAN BEGLIN M.D.

Internal Medicine (Interventional Cardiology)

2979 SQUALICUM PKWY, SUITE 101
BELLINGHAM, WA 98225

Whatcom County (360) 734-2700

DR. JAMES CHRISTOPHER RUSSO PHARMD

Pharmacist

2979 SQUALICUM PKWY, SUITE 101
BELLINGHAM, WA 98225

Whatcom County (360) 788-6934

THOMAS ARTHUR OLIVER M.D.

Internal Medicine (Cardiovascular Disease)

2979 SQUALICUM PKWY, SUITE 101
BELLINGHAM, WA 98225

Whatcom County (360) 734-2700

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 Gregory Munson's NPI number?

The NPI number for Gregory Munson is 1982610937. It was assigned to this individual provider in the NPPES registry on July 31, 2006.

Where is Gregory Munson located?

Gregory Munson practices at 2979 Squalicum Pkwy Suite 301, Bellingham, WA 98225. The listed phone number is (360) 734-1420.

What is Gregory Munson's specialty?

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

Is Gregory Munson enrolled in Medicare?

Yes. Gregory Munson 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 Gregory Munson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Munson reassigns Medicare benefits to Northwest Gastroenterology Professional LLC (Bellingham, WA). 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 Gregory Munson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Munson accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Gregory Munson 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 Gregory Munson affiliated with any hospitals?

According to CMS data, Gregory Munson is affiliated with Island Hospital and St Joseph Hospital.

When was this NPI record last updated?

The NPPES record for Gregory Munson was last updated on May 16, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.