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AMY RUILIN ZHAO MD
NPI 1306521281
Internal Medicine in Saint Louis, MO

Active since June 19, 2023PECOS EnrolledAccepts Medicare Assignment
1 BARNES JEW HOSP PLZ, SAINT LOUIS, MO 63110(314) 362-5060 Get Directions Write a Review

NPPES record last updated: June 19, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Amy Ruilin Zhao Md NPPES

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

AMY RUILIN ZHAO MD (NPI 1306521281) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2023023545) and active in the NPI registry since June 2023. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Washington University School Of Medicine (2023).

NPPES Registry Identity

NPI1306521281
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameAMY RUILIN ZHAOCredential: MD
Location Address1 BARNES JEW HOSP PLZSaint Louis, MO 63110-1003
Mailing Address660 S Euclid Ave, Mail Stop 8121-0022-07St Louis, MO 63110
Phone(314) 362-5060
Sole ProprietorNo
Medical School CMSWashington University School Of MedicineGraduated 2023
Enumeration DateJune 19, 2023
NPPES CertifiedJune 19, 2023
✔ NPI 1306521281 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2023023545
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.
1 BARNES JEW HOSP PLZ, Saint Louis, MO 63110
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cox HealthPlans, UnitedHealthcare.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

Amy Ruilin Zhao 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 ID9234697442
PECOS Enrollment IDI20260818004309
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 Amy Zhao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Washington University
0.7 mi
Multi-Specialty
660 S EUCLID AVE
Saint Louis, MO 63110
  • Reassigned Medicare billing, Missouri enrollment
  • 1,133 clinicians in this Medicare group
NPI 1992746903 (314) 747-5192

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number260032
LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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 20

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

ALESSIO JOSEPH BEFFA MD
Pathology (Anatomic Pathology & Clinical Pathology)
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-7440
JOHN VERHEY MD
Emergency Medicine
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9177
DR. MACKENZIE ANN MCKNIGHT MD
Emergency Medicine
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-9177
JOHN WILSON MD
Internal Medicine
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 747-3000
DR. LINDSAY MARIE BRUCE MD
Student in an Organized Health Care Education/Training Program
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 747-3000
JANE YUJING WANG MD
Internal Medicine
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-5000
DR. JACOB TAYLOR STEINLE MD
Psychiatry & Neurology (Psychiatry)
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-2462
DR. DIEGO MOISSES PATINO MD
Internal Medicine
1 BARNES JEW HOSP PLZ
SAINT LOUIS, MO 63110
St. Louis City (314) 362-8065

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 Amy Zhao's NPI number?

The NPI number for Amy Zhao is 1306521281. It was assigned to this individual provider in the NPPES registry on June 19, 2023.

Where is Amy Zhao located?

Amy Zhao practices at 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110. The listed phone number is (314) 362-5060.

What is Amy Zhao's specialty?

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

Is Amy Zhao enrolled in Medicare?

Yes. Amy Zhao 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 Amy Zhao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Amy Zhao reassigns Medicare benefits to Washington University (Saint Louis, MO). 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 Amy Zhao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Amy Zhao accept?

Health plans from Cox HealthPlans and UnitedHealthcare list Amy Zhao 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.

Is Amy Zhao affiliated with any hospitals?

According to CMS data, Amy Zhao is affiliated with Barnes Jewish Hospital.

When was this NPI record last updated?

The NPPES record for Amy Zhao was last updated on June 19, 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.