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MR. DAVID MORRIS SEGOUIA GRUNKEMEIER MD
NPI 1972542090
Internal Medicine - Gastroenterology in Portland, OR

Active since June 05, 2006PECOS EnrolledAccepts Medicare Assignment
9701 SW BARNES RD, SUITE #300, PORTLAND, OR 97225(503) 297-8081(503) 292-6601 Get Directions Write a Review

NPPES record last updated: November 18, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Nov 18, 2024, Nov 30, 2021 (2 updates tracked since 2021).

About Mr. David Morris Segouia Grunkemeier Md NPPES

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

MR. DAVID MORRIS SEGOUIA GRUNKEMEIER MD (NPI 1972542090) is an individual gastroenterology provider in Portland, Oregon, licensed in Oregon (MD23842) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Un Of California, Irvine, College Of Medicine (2000).

NPPES Registry Identity

NPI1972542090
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMR. DAVID MORRIS SEGOUIA GRUNKEMEIERCredential: MD
Location Address9701 SW BARNES RD, SUITE #300Portland, OR 97225-6589
Mailing Address541 Ne 20th Ave Ste 225Portland, OR 97232-2895 · (503) 963-2801 · Fax (503) 963-2825
Phone(503) 297-8081
Fax(503) 292-6601
Sole ProprietorNo
Medical School CMSUn Of California, Irvine, College Of MedicineGraduated 2000
Enumeration DateJune 5, 2006
Last NPPES UpdateNovember 18, 20242 updates tracked since enumeration
NPPES CertifiedNovember 18, 2024
✔ NPI 1972542090 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 OR · MD23842
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.
9701 SW BARNES RD, Portland, OR 97225
Open in Google Maps ↗

Other Identifiers 2

Medicaid006116OR
Medicaid8402478WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans 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

Mr. David Morris Segouia Grunkemeier 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 ID1951303544
PECOS Enrollment IDI20070912000820
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 9

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.
190 services81 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.
60 services60 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.
48 services46 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.
43 services43 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.
36 services36 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.
30 services28 patients

Hospital Affiliations CMS Care Compare 3

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

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380061
Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County
Emergency services Birthing friendly

Adventist Health Tillamook

Critical Access Hospitals · Tillamook, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number381317
Location1000 Third StreetTillamook, OR 97141 · Tillamook County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97225 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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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.

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. CHRISTOPHER R CARTER MD
Internal Medicine (Gastroenterology)
9701 SW BARNES RD, SUITE 300
PORTLAND, OR 97225
Washington County (503) 297-8081
THE OREGON CLINIC PC
Clinic/Center (Endoscopy)
9701 SW BARNES RD, SUITE 310
PORTLAND, OR 97225
Washington County (503) 297-8081
DR. CRISTIAN R. VALLEJOS M.D.
Internal Medicine (Gastroenterology)
9701 SW BARNES RD, SUITE 300
PORTLAND, OR 97225
Washington County (503) 297-8081
SALLY J WENTROSS MD
Obstetrics & Gynecology
9701 SW BARNES RD, SUITE 200
PORTLAND, OR 97225
Washington County (503) 734-3700
DR. GEORGE KOVAL MD
Internal Medicine (Gastroenterology)
9701 SW BARNES RD, STE 300
PORTLAND, OR 97225
Washington County (503) 297-8081
JENNIFER SARA SEMMELROTH PA-C
Physician Assistant (Medical)
9701 SW BARNES RD, SUITE 300
PORTLAND, OR 97225
Washington County (503) 297-8081
ANNA MALORA HARTSHORN ACNP
Nurse Practitioner (Acute Care)
9701 SW BARNES RD, SUITE 300
PORTLAND, OR 97225
Washington County (503) 297-8081
DR. MARY ELIZABETH SKRYPZAK M.D.
Obstetrics & Gynecology (Gynecology)
9701 SW BARNES RD, SUITE 150
PORTLAND, OR 97225
Washington County (503) 734-3535

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 David Grunkemeier's NPI number?

The NPI number for David Grunkemeier is 1972542090. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is David Grunkemeier located?

David Grunkemeier practices at 9701 SW Barnes Rd Suite #300, Portland, OR 97225. The listed phone number is (503) 297-8081.

What is David Grunkemeier's specialty?

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

Is David Grunkemeier enrolled in Medicare?

Yes. David Grunkemeier 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 David Grunkemeier accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list David Grunkemeier 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 David Grunkemeier affiliated with any hospitals?

According to CMS data, David Grunkemeier is affiliated with Providence St Vincent Medical Center, Providence Portland Medical Center and Adventist Health Tillamook.

When was this NPI record last updated?

The NPPES record for David Grunkemeier was last updated on November 18, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.