DR. RYAN W. GRIEGER MD
NPI 1942760251
Anesthesiology in Phoenix, AZ

Active since March 22, 2019PECOS EnrolledAccepts Medicare Assignment
4605 E ELWOOD ST STE 500, PHOENIX, AZ 85040(602) 200-9021 Get Directions Write a Review

NPPES record last updated: June 2, 2023. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jun 2, 2023, Mar 22, 2019 (2 updates tracked since 2019).

About Dr. Ryan W. Grieger Md NPPES

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

DR. RYAN W. GRIEGER MD (NPI 1942760251) is an individual anesthesiology provider in Phoenix, Arizona, licensed in Arizona (68374) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains a secondary practice location in Columbus, and is a graduate of University Of Arizona College Of Medicine (2019).

NPPES Registry Identity

NPI1942760251
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. RYAN W. GRIEGERCredential: MD
Location Address4605 E ELWOOD ST STE 500Phoenix, AZ 85040-1978
Mailing Address410 W 10th AveColumbus, OH 43210-1240
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2019
Enumeration DateMarch 22, 2019
Last NPPES UpdateJune 2, 20232 updates tracked since enumeration
NPPES CertifiedJune 2, 2023
NPI 1942760251 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License Licensed in AZ · 68374
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.
4605 E ELWOOD ST STE 500, Phoenix, AZ 85040

Secondary Practice Location 1

Location 1410 W 10th AveColumbus, OH 43210-1240 · Phone (614) 688-8942

Accepted 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

Dr. Ryan W. Grieger 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 ID4981061645
PECOS Enrollment IDI20230612001569
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 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.

Anesthesia for bone marrow aspiration and/or biopsy at pelvic bone 01112
Anesthesia for a bone marrow aspiration or biopsy at the pelvic bone is a service where medication is administered to numb the area. This helps to block pain during the procedure. It's typically done by injecting the anesthetic into the skin and tissue around the pelvic bone.
20 services20 patients
Anesthesia for other procedure on neck area (1 year or older) 00320
Anesthesia for a procedure on the neck area is a medical service provided to ensure you remain comfortable and pain-free during the operation. It involves administering medication to numb the neck region or to induce sleep. The method chosen depends on the specific procedure and your overall health.
13 services13 patients

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.

Nurse Anesthetist, Certified Registered
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Nurse Anesthetist, Certified Registered
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Anesthesiology
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Anesthesiology
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Anesthesiology
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Nurse Anesthetist, Certified Registered
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Nurse Anesthetist, Certified Registered
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040
Nurse Anesthetist, Certified Registered
4605 E ELWOOD ST STE 500
PHOENIX, AZ 85040

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 Ryan Grieger's NPI number?

The NPI number for Ryan Grieger is 1942760251. It was assigned to this individual provider in the NPPES registry on March 22, 2019.

Where is Ryan Grieger located?

Ryan Grieger practices at 4605 E Elwood St Ste 500, Phoenix, AZ 85040. The listed phone number is (602) 200-9021.

What is Ryan Grieger's specialty?

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

Is Ryan Grieger enrolled in Medicare?

Yes. Ryan Grieger 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 Ryan Grieger accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and Oscar Insurance Company list Ryan Grieger 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 Ryan Grieger was last updated on June 2, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.