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FRED D HOLMES M.D.
NPI 1104879584
Anesthesiology in Phoenix, AZ

Active since May 18, 2006PECOS EnrolledAccepts Medicare Assignment
300 W CLARENDON AVE, SUITE 142, PHOENIX, AZ 85013(602) 234-1803(602) 234-3748 Get Directions Write a Review

NPPES record last updated: March 4, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 4, 2016, Feb 22, 2016 (2 updates tracked since 2016).

About Fred D Holmes M.d. NPPES

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

FRED D HOLMES M.D. (NPI 1104879584) is an individual anesthesiology provider in Phoenix, Arizona, licensed in Arizona (28917) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1979).

NPPES Registry Identity

NPI1104879584
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameFRED D HOLMESCredential: M.D.
Location Address300 W CLARENDON AVE, SUITE 142Phoenix, AZ 85013-3449
Mailing AddressPo Box 36680Phoenix, AZ 85067-6680 · (602) 234-1803 · Fax (602) 234-3748
Phone(602) 234-1803
Fax(602) 234-3748
Sole ProprietorYes
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1979
Enumeration DateMay 18, 2006
Last NPPES UpdateMarch 4, 20162 updates tracked since enumeration
✔ NPI 1104879584 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in AZ · 28917
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.
300 W CLARENDON AVE, Phoenix, AZ 85013
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Other Identifiers 3

Medicare UPINA49692
Medicaid558314AZ
Medicare PINZ68779AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna HealthCare of Arizona, Inc.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

Fred D Holmes M.d. 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 ID5294623393
PECOS Enrollment IDI20040309001452
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

2

Medicare enrollment records show Fred Holmes reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

District Medical Group, Inc
3.8 mi
Pulmonary Disease
2525 E ROOSEVELT ST, MED CLINIC - PULMONARY
Phoenix, AZ 85008
  • Reassigned Medicare billing, Arizona enrollment
  • 1,490 clinicians in this Medicare group
NPI 1700119815 (602) 344-1095
Pca Anesthesia
13 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

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.

RENEE O'SULLIVAN NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
HARRY J CAVANAGH JR. M.D.
Anesthesiology
300 W CLARENDON AVE, SUITE 142
PHOENIX, AZ 85013
Maricopa County (602) 234-1803
ELLEN P TAPPERO NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
SARVESH K NIGAM MD
Pediatrics
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
TRACEY GILLISPIE NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
DINA R TULENKO NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
PATRICIA SPARRAZZA NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161
JOAN GATZ NNP
Nurse Practitioner (Neonatal)
300 W CLARENDON AVE, 375
PHOENIX, AZ 85013
Maricopa County (602) 277-4161

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 Fred Holmes's NPI number?

The NPI number for Fred Holmes is 1104879584. It was assigned to this individual provider in the NPPES registry on May 18, 2006.

Where is Fred Holmes located?

Fred Holmes practices at 300 W Clarendon Ave Suite 142, Phoenix, AZ 85013. The listed phone number is (602) 234-1803.

What is Fred Holmes's specialty?

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

Is Fred Holmes enrolled in Medicare?

Yes. Fred Holmes 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 Fred Holmes's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fred Holmes reassigns Medicare benefits to 2 organizations: District Medical Group, Inc (Phoenix, AZ) and Pca Anesthesia (Tempe, 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 Fred Holmes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Fred Holmes accept?

Health plans from Cigna HealthCare of Arizona, Inc list Fred Holmes 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 Fred Holmes was last updated on March 4, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.