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DR. OLIVER GREY WALDROP MD
NPI 1205879475
Internal Medicine - Hospice and Palliative Medicine in Phoenix, AZ

Active since June 14, 2006PECOS EnrolledAccepts Medicare Assignment
1510 E FLOWER ST, PHOENIX, AZ 85014(602) 530-6900 Get Directions Write a Review

NPPES record last updated: August 20, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 20, 2026, Jun 18, 2025, Oct 6, 2023 and 3 more (6 updates tracked since 2019).

About Dr. Oliver Grey Waldrop Md NPPES

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

DR. OLIVER GREY WALDROP MD (NPI 1205879475) is an individual hospice and palliative medicine provider in Phoenix, Arizona, licensed in Arizona (46900) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of University Of Mississippi School Of Medicine (2003).

NPPES Registry Identity

NPI1205879475
Entity TypeIndividualMale
Primary Taxonomy207RH0002X
Provider Legal NameDR. OLIVER GREY WALDROPCredential: MD
Location Address1510 E FLOWER STPhoenix, AZ 85014-5656
Mailing Address1510 E Flower StPhoenix, AZ 85014-5656 · (602) 530-6900
Phone(602) 530-6900
Sole ProprietorNo
Medical School CMSUniversity Of Mississippi School Of MedicineGraduated 2003
Enumeration DateJune 14, 2006
Last NPPES UpdateAugust 20, 20266 updates tracked since enumeration
NPPES CertifiedAugust 20, 2026
✔ NPI 1205879475 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
Licenses✔ Licensed in AZ · 46900✔ Licensed in MS · 18958
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
1510 E FLOWER ST, Phoenix, AZ 85014
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Secondary Practice Location 1

Location 12601 E Roosevelt StPhoenix, AZ 85008-4973 · Phone (833) 855-9973

Other Identifiers 2

Medicaid002886714MS
OtherP00462351MS · Railroad Medicare

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health, Antidote Health Plan of Arizona, Inc. and more.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. Oliver Grey Waldrop 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 ID9537163530
PECOS Enrollment IDI20150902003315
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

8

Medicare enrollment records show Oliver Waldrop reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Arizona Supportive Care, LLC
Same address
Specialist
1510 E FLOWER ST
Phoenix, AZ 85014
  • Reassigned Medicare billing, Arizona enrollment
  • 15 clinicians in this Medicare group
NPI 1710279385 (602) 530-6900
Hospice Of The Valley
Same address
Hospice Care, Community Based
1510 E FLOWER ST
Phoenix, AZ 85014
  • Reassigned Medicare billing, Arizona enrollment
  • 54 clinicians in this Medicare group
NPI 1588682405 (602) 287-7000
Geriatric Solutions - Hov, LLC
Same address
Geriatric Medicine
1510 E FLOWER ST
Phoenix, AZ 85014
  • Reassigned Medicare billing, Arizona enrollment
  • 41 clinicians in this Medicare group
NPI 1033145495 (602) 954-0444
Honorhealth Ambulatory
1.5 mi
Cardiovascular Disease
340 E PALM LN STE A175
Phoenix, AZ 85004
  • Reassigned Medicare billing, Arizona enrollment
  • 822 clinicians in this Medicare group
NPI 1548886500 (602) 386-1100
Apogee Medical Group Inc
2.0 mi
Internal Medicine
2525 E CAMELBACK RD, SUITE 1100
Phoenix, AZ 85016
  • Reassigned Medicare billing, Arizona enrollment
  • 240 clinicians in this Medicare group
NPI 1851561302 (602) 778-3600
Maricopa County Special Health Care District
2.3 mi
Adult Mental Health
2525 E ROOSEVELT ST
Phoenix, AZ 85008
  • Reassigned Medicare billing, Arizona enrollment
  • 285 clinicians in this Medicare group
NPI 1205295581 (602) 344-8178
Singing River Gulfport
1,362 mi
Emergency Medicine
15200 COMMUNITY RD
Gulfport, MS 39503
  • Reassigned Medicare billing, Mississippi enrollment
  • 298 clinicians in this Medicare group
NPI 1063133833 (228) 575-7120
Singing River Health System
1,380 mi
Internal Medicine
3109 BIENVILLE BLVD
Ocean Springs, MS 39564
  • Reassigned Medicare billing, Mississippi enrollment
  • 450 clinicians in this Medicare group
NPI 1053528109 (228) 818-1111

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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. MAI AMY HA M.D.
Internal Medicine
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 530-6900
GERIATRIC SOLUTIONS - HOV, LLC
Family Medicine (Geriatric Medicine)
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 954-0444
SARA CRANCE RN
Nurse Practitioner (Adult Health)
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 530-6900
ANABELL CASTRO THOMPSON NP-C
Nurse Practitioner
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 358-9608
CHARISE LYNNE MONTE FNP
Nurse Practitioner (Family)
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 954-0444
DR. MARIA THERESA STEVENS MD
Internal Medicine
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 821-6569
DR. TALISSA BETH ADKISON M.D
Internal Medicine (Geriatric Medicine)
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 954-0444
KERRY SHORT FNP-BC
Nurse Practitioner (Family)
1510 E FLOWER ST
PHOENIX, AZ 85014
Maricopa County (602) 954-0444

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 Oliver Waldrop's NPI number?

The NPI number for Oliver Waldrop is 1205879475. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is Oliver Waldrop located?

Oliver Waldrop practices at 1510 E Flower St, Phoenix, AZ 85014. The listed phone number is (602) 530-6900.

What is Oliver Waldrop's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Oliver Waldrop enrolled in Medicare?

Yes. Oliver Waldrop 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 Oliver Waldrop's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oliver Waldrop reassigns Medicare benefits to 8 organizations: Arizona Supportive Care, LLC (Phoenix, AZ), Hospice Of The Valley (Phoenix, AZ), Geriatric Solutions - Hov, LLC (Phoenix, AZ), Honorhealth Ambulatory (Phoenix, AZ), Apogee Medical Group Inc (Phoenix, AZ) and 3 more organizations, listed in the Medicare section above. 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 Oliver Waldrop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Oliver Waldrop accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Antidote Health Plan of Arizona, Inc., Blue Cross Blue Shield of Arizona and Cigna HealthCare of Arizona, Inc and 3 other insurers list Oliver Waldrop 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 Oliver Waldrop was last updated on August 20, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.