1. Home
  2. Directory
  3. Arizona
  4. Flagstaff
  5. Nurse Anesthetist Certified Registered
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. MELISSA A ACQUAVIVA CRNA
NPI 1639238348
Nurse Anesthetist, Certified Registered in Flagstaff, AZ

Active since December 08, 2006PECOS EnrolledAccepts Medicare Assignment
77.01/100
CMS Quality Rating
1200 N BEAVER ST, FLAGSTAFF, AZ 86001(928) 779-3366 Get Directions Write a Review

NPPES record last updated: September 30, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 30, 2026, Jan 13, 2026, Mar 18, 2021 (3 updates tracked since 2021).

About Mrs. Melissa A Acquaviva Crna NPPES

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

MRS. MELISSA A ACQUAVIVA CRNA (NPI 1639238348) is an individual nurse anesthetist, certified registered in Flagstaff, Arizona, licensed in Arizona (251083) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2006).

NPPES Registry Identity

NPI1639238348
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameMRS. MELISSA A ACQUAVIVACredential: CRNA
Location Address1200 N BEAVER STFlagstaff, AZ 86001-3118
Mailing Address1200 N Beaver StFlagstaff, AZ 86001-3118 · (928) 213-6235 · Fax (928) 213-6292
Phone(928) 779-3366
Sole ProprietorNo
Medical School CMSOtherGraduated 2006
Enumeration DateDecember 8, 2006
Last NPPES UpdateSeptember 30, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2026
✔ NPI 1639238348 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in AZ · 251083✔ Licensed in IL · 209035977✔ Licensed in SD · CR000769
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
1200 N BEAVER ST, Flagstaff, AZ 86001
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Arizona.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

Mrs. Melissa A Acquaviva Crna 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 ID4981788346
PECOS Enrollment IDI20260817000507
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

5

Medicare enrollment records show Melissa Acquaviva reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Twin Peaks Acquaviva LLC
1.0 mi
Nurse Anesthetist, Certified Registered
1987 N METEOR DR
Flagstaff, AZ 86001
  • Reassigned Medicare billing, Arizona enrollment
NPI 1477419836 (928) 699-1421
Valley Anesthesiology Consultants, Inc.
108 mi
Anesthesiology
2262 E ROSE GARDEN LN
Phoenix, AZ 85024
  • Reassigned Medicare billing, Arizona enrollment
  • 518 clinicians in this Medicare group
NPI 1285660704 (954) 939-5000
Greater Anesthesia Solutions
124 mi
Anesthesiology
10720 W INDIAN SCHOOL RD STE 19-1039
Phoenix, AZ 85037
  • Reassigned Medicare billing, Arizona enrollment
  • 423 clinicians in this Medicare group
NPI 1124430244 (480) 977-9559
Blessing Hospital
1,155 mi
Thoracic Surgery (Cardiothoracic Vascular Surgery)
927 BROADWAY ST, SUITE 205
Quincy, IL 62301
  • Reassigned Medicare billing, Illinois enrollment
  • 127 clinicians in this Medicare group
NPI 1629148127 (217) 277-8960
Anesthesia Partners & Management LLC
1,577 mi
Nurse Anesthetist, Certified Registered
8273 GRAND RIVER RD STE 210
Brighton, MI 48114
  • Reassigned Medicare billing, Arizona enrollment
  • 370 clinicians in this Medicare group
NPI 1336530997 (480) 420-4027

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 86001 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
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

77.01/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality59.66
Promoting Interoperability100
Improvement Activities40
Cost63.71

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. JEREMY NIELSEN M.D.
Anesthesiology
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 779-3366
DR. SEAN DANIEL WOODS M.D.
Pediatrics (Neonatal-Perinatal Medicine)
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2112
ELIZABETH GILMORE CRNA
Nurse Anesthetist, Certified Registered
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 779-3366
TANYA LEE MORGAN TWEED RDN
Dietitian, Registered
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 773-2441
THOMAS MATTHEW REEVE MD
Emergency Medicine
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (210) 464-7442
MS. SUSAN POMEROY BASSETT M.S.
Audiologist
1200 N BEAVER ST, AUDIOLOGY DEPARTMENT
FLAGSTAFF, AZ 86001
Coconino County (928) 214-3728
DR. ALI I RAJA MD, MSC
Neurological Surgery
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 779-3366
LEAH MARIE COFFMAN PAUL CRNA
Nurse Anesthetist, Certified Registered
1200 N BEAVER ST
FLAGSTAFF, AZ 86001
Coconino County (928) 779-3366

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 Melissa Acquaviva's NPI number?

The NPI number for Melissa Acquaviva is 1639238348. It was assigned to this individual provider in the NPPES registry on December 8, 2006.

Where is Melissa Acquaviva located?

Melissa Acquaviva practices at 1200 N Beaver St, Flagstaff, AZ 86001. The listed phone number is (928) 779-3366.

What is Melissa Acquaviva's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Melissa Acquaviva enrolled in Medicare?

Yes. Melissa Acquaviva 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 Melissa Acquaviva's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Acquaviva reassigns Medicare benefits to 5 organizations: Twin Peaks Acquaviva LLC (Flagstaff, AZ), Valley Anesthesiology Consultants, Inc. (Phoenix, AZ), Greater Anesthesia Solutions (Phoenix, AZ), Blessing Hospital (Quincy, IL) and Anesthesia Partners & Management LLC (Brighton, MI). 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 Melissa Acquaviva's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Acquaviva accept?

Health plans from Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Arizona list Melissa Acquaviva 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 Melissa Acquaviva was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.