1. Home
  2. Directory
  3. Arizona
  4. Phoenix
  5. Internal Medicine
  6. NPI Profile

DR. MELISSA DAWN SANDOVAL M.D.
NPI 1124207394
Internal Medicine in Phoenix, AZ

Active since October 24, 2007PECOS EnrolledAccepts Medicare Assignment
333 W INDIAN SCHOOL RD, PHOENIX, AZ 85013(602) 776-9000 Get Directions Write a Review

NPPES record last updated: September 23, 2016. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Melissa Dawn Sandoval M.d. NPPES

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

DR. MELISSA DAWN SANDOVAL M.D. (NPI 1124207394) is an individual internal medicine provider in Phoenix, Arizona, licensed in California (A95645) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2004).

NPPES Registry Identity

NPI1124207394
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. MELISSA DAWN SANDOVALCredential: M.D.
Location Address333 W INDIAN SCHOOL RDPhoenix, AZ 85013-3205
Mailing Address333 W Indian School RdPhoenix, AZ 85013-3205 · (602) 776-9000
Phone(602) 776-9000
Sole ProprietorNo
Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2004
Enumeration DateOctober 24, 2007
Last NPPES UpdateSeptember 23, 2016
✔ NPI 1124207394 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A95645
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.
333 W INDIAN SCHOOL RD, Phoenix, AZ 85013
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter Health.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. Melissa Dawn Sandoval 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 ID4880772680
PECOS Enrollment IDI20160815001952
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 Melissa Sandoval reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Circle The City
Same address
Family Medicine
333 W INDIAN SCHOOL RD
Phoenix, AZ 85013
  • Reassigned Medicare billing, Arizona enrollment
  • 49 clinicians in this Medicare group
NPI 1346588316 (602) 776-9000

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 85013 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.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. ANGELA MICHELLE JARVIS FNP-C
Nurse Practitioner (Family)
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 357-4734
CIRCLE THE CITY
Family Medicine
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000
LINDSAY WEBB RN
Registered Nurse
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (623) 900-2204
MRS. DENISE SPRACKLEN KRIESE P.T,
Physical Therapist
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000
DR. ALAN JOSEPH NAIM MD
Internal Medicine (Gastroenterology)
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000
CIRCLE THE CITY BEHAVIORAL HEALTH, LLC
Clinic/Center (Mental Health (Including Community Mental Health Center))
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000
NAM H CHAN MD
Internal Medicine
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000
CIRCLE THE CITY
Clinic/Center (Federally Qualified Health Center (FQHC))
333 W INDIAN SCHOOL RD
PHOENIX, AZ 85013
Maricopa County (602) 776-9000

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 Sandoval's NPI number?

The NPI number for Melissa Sandoval is 1124207394. It was assigned to this individual provider in the NPPES registry on October 24, 2007.

Where is Melissa Sandoval located?

Melissa Sandoval practices at 333 W Indian School Rd, Phoenix, AZ 85013. The listed phone number is (602) 776-9000.

What is Melissa Sandoval's specialty?

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

Is Melissa Sandoval enrolled in Medicare?

Yes. Melissa Sandoval 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 organization bills Medicare for Melissa Sandoval's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Sandoval reassigns Medicare benefits to Circle The City (Phoenix, AZ). 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 Melissa Sandoval's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Melissa Sandoval accept?

Health plans from Ambetter Health and Ambetter from Arizona Complete Health list Melissa Sandoval 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 Sandoval was last updated on September 23, 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.