DR. GRANT MICHAEL BARNUM (D.O.) – Geriatric Medicine (Internal Medicine) Physician, NPI 1639178445

Geriatric Medicine (Internal Medicine) Physician

DR. GRANT MICHAEL BARNUM (D.O.) is a healthcare provider. based in Osage beach, Missouri. specializing in Geriatric Medicine (Internal Medicine) Physician. They hold the professional credentials D.O.. They hold a License No. DOR4GO2 (MO). The NPI Number for DR. GRANT MICHAEL BARNUM (D.O.) is 1639178445

Main info

Male

43 Years Of Experience

Accepts Medicare Assignment

Name

DR. GRANT MICHAEL BARNUM (D.O.)

NPI

1639178445

Phone

Not provided

Address

54 HOSPITAL DR

Enumeration Date

14 July 2005

Last Update Date

5 May 2008

Doctor Profile

Medical School Name

AT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE

Secondary Phone

Graduation Year

1983 (43 years ago)

PAC ID

6507870235

Group Practice PAC ID

9133026776

Professional Enrollment ID

I20060201000460

Data current as of

19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology

Experience54

Completeness75

Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for DR. GRANT MICHAEL BARNUM (D.O.)

Lake Regional Health System, 54, Hospital Drive, Osage Beach, Camden County, Missouri, 65065, United States
OSAGE BEACH, MO 650653050
Phone:
Type: Mailing
1870, Bagnell Dam Boulevard, Lake Ozark, Camden County, Missouri, 65049, United States
LAKE OZARK, MO 650498658
Phone: (573) 365-2318
Fax: (573) 365-3009
Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

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Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 65065)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.

PAC ID: 9133026776View full group profile

Name	Specialty	State
KAREN S. HAYES (N.P.)	-	MO
LAURA SEAMAN (FNP-C)	Nurse Practitioner	MO
TANIA BEATRIZ BELTRAN PAPSDORF (MD)	N E U R O L O G Y	MO
HAILEY DUNN (FNP)	Nurse Practitioner	MO
DANIEL L. JOHNSON (FNP)	Nurse Practitioner	MO
SHAHID WAHEED (M.D.)	Hematology/Oncology, Internal Medicine	MO
DR. JOHN CARLYN BRAND (D.O.)	Family Practice	MO
BRANDI NICOLE KINCAID (MSN, APRN, NP-C)	Nurse Practitioner	MO
MICHAEL JAMES LEWIS (FNP-BC)	Nurse Practitioner	MO
DR. SAILAJA TUMMALA (MD)	Family Practice	MO

Reviews

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Frequently asked questions

Is there an official ID for DR. GRANT MICHAEL BARNUM (D.O.) in U.S. healthcare records?

The official identifier for DR. GRANT MICHAEL BARNUM (D.O.) is NPI 1639178445.

Is DR. GRANT MICHAEL BARNUM (D.O.) still an active registrant?

DR. GRANT MICHAEL BARNUM (D.O.) carries an active NPI according to the public dataset.

What clinical focus is listed for DR. GRANT MICHAEL BARNUM (D.O.)?

At a glance, DR. GRANT MICHAEL BARNUM (D.O.) is tied to Geriatric Medicine (Internal Medicine) Physician. Clinical services aligned with this taxonomy classification.

What practice footprint exists for DR. GRANT MICHAEL BARNUM (D.O.)?

Travel planning: use Osage Beach, Missouri as the reference point for DR. GRANT MICHAEL BARNUM (D.O.), then confirm.

What does 2 location(s) imply?

2 practice locations appear in the available data.