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DR. DAVID S GRAUMAN M.D., P.C., M.R.O.
NPI 1508993429
Internal Medicine in Flagstaff, AZ

Active since February 27, 2007PECOS Enrolled
12340 N EAGLE RD, FLAGSTAFF, AZ 86004(928) 686-7858 Get Directions Write a Review

NPPES record last updated: May 20, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 20, 2026, May 17, 2026 (2 updates tracked since 2026).

About Dr. David S Grauman M.d., P.c., M.r.o. NPPES

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

DR. DAVID S GRAUMAN M.D., P.C., M.R.O. (NPI 1508993429) is an individual internal medicine provider in Flagstaff, Arizona, licensed in Arizona (75392) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1508993429
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. DAVID S GRAUMANCredential: M.D., P.C., M.R.O.
Location Address12340 N EAGLE RDFlagstaff, AZ 86004-5326
Mailing Address12340 N Eagle RdFlagstaff, AZ 86004-5326 · (928) 686-7859
Phone(928) 686-7858
Sole ProprietorYes
Enumeration DateFebruary 27, 2007
Last NPPES UpdateMay 20, 20262 updates tracked since enumeration
NPPES CertifiedMay 20, 2026
✔ NPI 1508993429 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in AZ · 75392
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
12340 N EAGLE RD, Flagstaff, AZ 86004
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David S Grauman M.d., P.c., M.r.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

Commonwealth Healthcare Corporation
6,313 mi
End-Stage Renal Disease (ESRD) Treatment
1 LOWER NAVY HILL ROAD
Saipan, MP 96950
  • Reassigned Medicare billing, Northern Mariana Islands enrollment
  • 200 clinicians in this Medicare group
NPI 1285858290 (670) 234-8950

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 2

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 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.
170 services79 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.
45 services36 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86004 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
$127.71 typical visit price
range $55.44 – $168.60
Typical copayment $31.92 (range $13.86 – $42.15)
Most-billed visit code 99204
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
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.

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 Grauman's NPI number?

The NPI number for David Grauman is 1508993429. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is David Grauman located?

David Grauman practices at 12340 N Eagle Rd, Flagstaff, AZ 86004. The listed phone number is (928) 686-7858.

What is David Grauman's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is David Grauman enrolled in Medicare?

Yes. David Grauman is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Grauman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Grauman reassigns Medicare benefits to Commonwealth Healthcare Corporation (Saipan, MP). 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 David Grauman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Grauman was last updated on May 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.