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DR. ROBERT Y HSIAO M.D.
NPI 1992758601
Pediatrics - Neonatal-Perinatal Medicine in Tucson, AZ

Active since May 17, 2006PECOS Enrolled
5301 E GRANT RD, TUCSON, AZ 85712(520) 324-2308 Get Directions Write a Review

NPPES record last updated: August 6, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 6, 2025, May 15, 2025, Mar 11, 2025 (3 updates tracked since 2025).

About Dr. Robert Y Hsiao M.d. NPPES

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

DR. ROBERT Y HSIAO M.D. (NPI 1992758601) is an individual neonatal-perinatal medicine provider in Tucson, Arizona, licensed in Arizona (75919) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1992758601
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameDR. ROBERT Y HSIAOCredential: M.D.
Location Address5301 E GRANT RDTucson, AZ 85712-2874
Mailing Address5301 E Grant RdTucson, AZ 85712-2874 · (520) 324-2308
Phone(520) 324-2308
Sole ProprietorNo
Enumeration DateMay 17, 2006
Last NPPES UpdateAugust 6, 20253 updates tracked since enumeration
NPPES CertifiedAugust 6, 2025
✔ NPI 1992758601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
Licenses✔ Licensed in AZ · 75919✔ Licensed in KS · 0419228✔ Licensed in PA · MD487815C
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
5301 E GRANT RD, Tucson, AZ 85712
Open in Google Maps ↗

Secondary Practice Locations 2

Location 1550 N Hillside StWichita, KS 67214-4910 · Phone (316) 962-8580 · Fax (316) 962-8581
Location 2111 S Front StHarrisburg, PA 17101-2010 · Phone (717) 782-5223

Other Identifiers 2

Medicaid200317270AKS
Other104666KS · Bcbs

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert Y Hsiao M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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

4

Medicare enrollment records show Robert Hsiao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tmc Medical Network
Same address
Multi-Specialty
5301 E GRANT RD
Tucson, AZ 85712
  • Reassigned Medicare billing, Arizona enrollment
  • 471 clinicians in this Medicare group
NPI 1750832283 (520) 327-5461
Pokroy Medical Group Of Nevada, Ltd.
371 mi
Neonatal-Perinatal Medicine
653 N TOWN CENTER DR STE 112
Las Vegas, NV 89144
  • Reassigned Medicare billing, Nevada enrollment
  • 150 clinicians in this Medicare group
NPI 1992809412 (702) 733-0981
Upmc Western Maryland Health Services, LLC
1,828 mi
Urgent Care
23789 GARRETT HWY
Mc Henry, MD 21541
  • Reassigned Medicare billing, Maryland enrollment
  • 318 clinicians in this Medicare group
NPI 1013696491 (240) 488-4139
Pinnacle Health Medical Services
1,921 mi
Orthopaedic Surgery
144 S 8TH ST STE 107
Chambersburg, PA 17201
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,902 clinicians in this Medicare group
NPI 1417558008 (717) 414-7798

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.

HOLLY JEANNE GRAHAM M.D.
Anesthesiology
5301 E GRANT RD, THMEP
TUCSON, AZ 85712
Pima County (520) 324-5095
SAMANTHA PENN PHARMD
Pharmacist
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5122
DR. VICTOR HUGO RUIZ PHARMD
Student in an Organized Health Care Education/Training Program
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-2516
SARA PETTEY SANDIFER MD
Student in an Organized Health Care Education/Training Program
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5095
JOSHUA LEE M.D.
Internal Medicine
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5524
VANESSA LYNN PORTOR RN
Registered Nurse (Lactation Consultant)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5730
MRS. KRISTY BELONE FNP-C
Nurse Practitioner (Family)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 324-5461
LORRAINE Y YENTZER AGACNP
Nurse Practitioner (Gerontology)
5301 E GRANT RD
TUCSON, AZ 85712
Pima County (520) 327-5461

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 Robert Hsiao's NPI number?

The NPI number for Robert Hsiao is 1992758601. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Where is Robert Hsiao located?

Robert Hsiao practices at 5301 E Grant Rd, Tucson, AZ 85712. The listed phone number is (520) 324-2308.

What is Robert Hsiao's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Robert Hsiao enrolled in Medicare?

Yes. Robert Hsiao is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Hsiao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hsiao reassigns Medicare benefits to 4 organizations: Tmc Medical Network (Tucson, AZ), Pokroy Medical Group Of Nevada, Ltd. (Las Vegas, NV), Upmc Western Maryland Health Services, LLC (Mc Henry, MD) and Pinnacle Health Medical Services (Chambersburg, PA). 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 Robert Hsiao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Robert Hsiao was last updated on August 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.