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GREGORY J OPDAHL MD
NPI 1194985788
Anesthesiology in Tillamook, OR

Active since June 17, 2008PECOS EnrolledAccepts Medicare Assignment
68.46/100
CMS Quality Rating
1000 3RD ST, TILLAMOOK, OR 97141(360) 556-2600 Get Directions Write a Review

NPPES record last updated: July 16, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Gregory J Opdahl Md NPPES

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

GREGORY J OPDAHL MD (NPI 1194985788) is an individual anesthesiology provider in Tillamook, Oregon, licensed in Illinois (125054737) and active in the NPI registry since June 2008. He is enrolled in Medicare PECOS and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2008).

NPPES Registry Identity

NPI1194985788
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameGREGORY J OPDAHLCredential: MD
Location Address1000 3RD STTillamook, OR 97141-3430
Mailing Address4950 Clam Way WTillamook, OR 97141 · (360) 556-2600
Phone(360) 556-2600
Sole ProprietorYes
Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2008
Enumeration DateJune 17, 2008
Last NPPES UpdateJuly 16, 2015
✔ NPI 1194985788 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 125054737
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1000 3RD ST, Tillamook, OR 97141
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health, Oscar Health Plan, Inc., Oscar Insurance Company.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

Gregory J Opdahl 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 ID3274784533
PECOS Enrollment IDI20220623001055
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

4

Medicare enrollment records show Gregory Opdahl reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northwest Medical Foundation Of Tillamook
Same address
Critical Access
1000 3RD ST
Tillamook, OR 97141
  • Reassigned Medicare billing, Oregon enrollment
  • 206 clinicians in this Medicare group
NPI 1184607020 (503) 842-4444
Banner - University Hospital Based Physicians LLC
1,037 mi
General Acute Care Hospital
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 728 clinicians in this Medicare group
NPI 1750751566 (602) 747-4000
Pca Anesthesia
1,048 mi
Anesthesiology
2421 E SOUTHERN AVE STE 7
Tempe, AZ 85282
  • Reassigned Medicare billing, Arizona enrollment
  • 107 clinicians in this Medicare group
NPI 1164804258 (480) 425-2160
Hospitalist Medicine Physicians Of Arizona - Nogales
1,155 mi
Nurse Anesthetist, Certified Registered
5755 S HOUGHTON RD
Tucson, AZ 85747
  • Reassigned Medicare billing, Arizona enrollment
  • 204 clinicians in this Medicare group
NPI 1487251799 (520) 324-5818

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 3

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.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
34 services34 patients
Anesthesia for other closed procedure on chest 00520
Anesthesia for a closed chest procedure involves the use of medications to block sensation, ensuring you don't feel pain during the procedure. It can be general (you're asleep) or regional (part of your body is numbed). This helps maintain comfort and safety.
12 services11 patients
Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
11 services11 patients

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.

68.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality65.92
Promoting Interoperability85
Improvement Activities40
Cost38.83

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.

CURTIS R NERNESS MD
Internal Medicine
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (702) 453-3799
MRS. KATHLEEN YVONNE SAUNDERS MS, MPH, RD, LD
Dietitian, Registered
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 815-2443
NANCY MICHELLE INFORZATO M.D.
Internal Medicine
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 842-4444
GALEN INPATIENT PHYSICIANS PC
Hospitalist
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 842-4444
DR. GENE MCCOLGIN M.D.
Emergency Medicine
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 842-4444
NORTHWEST MEDICAL FOUNDATION OF TILLAMOOK
General Acute Care Hospital (Critical Access)
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 842-4444
MRS. JANICE CAROL WOLK RD, CDE
Dietitian, Registered
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 815-2287
JONATHAN MARK JACKSON DPT
Physical Therapist
1000 3RD ST
TILLAMOOK, OR 97141
Tillamook County (503) 842-4444

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 Opdahl's NPI number?

The NPI number for Gregory Opdahl is 1194985788. It was assigned to this individual provider in the NPPES registry on June 17, 2008.

Where is Gregory Opdahl located?

Gregory Opdahl practices at 1000 3rd St, Tillamook, OR 97141. The listed phone number is (360) 556-2600.

What is Gregory Opdahl's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Gregory Opdahl enrolled in Medicare?

Yes. Gregory Opdahl 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 organizations bill Medicare for Gregory Opdahl's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Opdahl reassigns Medicare benefits to 4 organizations: Northwest Medical Foundation Of Tillamook (Tillamook, OR), Banner - University Hospital Based Physicians LLC (Phoenix, AZ), Pca Anesthesia (Tempe, AZ) and Hospitalist Medicine Physicians Of Arizona - Nogales (Tucson, AZ). 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 Gregory Opdahl's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Opdahl accept?

Health plans from Oscar Health, Oscar Health Plan, Inc. and Oscar Insurance Company list Gregory Opdahl 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 Gregory Opdahl was last updated on July 16, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.