CHARLIE ZHAO MD
NPI 1497140214
Hospitalist in Mt. Kisco, NY
About Charlie Zhao Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHARLIE ZHAO MD (NPI 1497140214) is an individual hospitalist provider in Mt. Kisco, New York, licensed in New York (296844) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, is affiliated with Northern Westchester Hospital, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
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
Charlie 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.
Medicare Billing Reassignments
4Medicare enrollment records show Charlie Zhao reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mount Kisco, NY 10549
- Reassigned Medicare billing, New York enrollment
- 76 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 clinicians in this Medicare group
Stamford, CT 06907
- Reassigned Medicare billing, Connecticut enrollment
- 496 clinicians in this Medicare group
Great Neck, NY 11021
- Reassigned Medicare billing, New York enrollment
- 9,353 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
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.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northern Westchester Hospital
Acute Care Hospitals · Mount Kisco, NYPhelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYPutnam Hospital Center
Acute Care Hospitals · Carmel, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10549 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MT KISCO, NY 10549
MT KISCO, NY 10549
MT KISCO, NY 10549
MOUNT KISCO, NY 10549
MOUNT KISCO, NY 10549
MT KISCO, NY 10549
MOUNT KISCO, NY 10549
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 Charlie Zhao's NPI number?
The NPI number for Charlie Zhao is 1497140214. It was assigned to this individual provider in the NPPES registry on March 30, 2015.
Where is Charlie Zhao located?
Charlie Zhao practices at 400 East Main Street Medical Affairs, Mt. Kisco, NY 10549. The listed phone number is (914) 666-1200.
What is Charlie Zhao's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Charlie Zhao enrolled in Medicare?
Yes. Charlie 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 organizations bill Medicare for Charlie Zhao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Charlie Zhao reassigns Medicare benefits to 4 organizations: Northern Westchester Hospital Association (Mount Kisco, NY), Westchester Medical Center Advanced Physician Services PC (Valhalla, NY), Stamford Health Medical Group Inc (Stamford, CT) and North Shore-Lij Medical PC (Great Neck, NY). 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 Charlie Zhao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Charlie Zhao affiliated with any hospitals?
According to CMS data, Charlie Zhao is affiliated with Northern Westchester Hospital, Phelps Hospital and Putnam Hospital Center.
When was this NPI record last updated?
The NPPES record for Charlie Zhao was last updated on February 25, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Charlie Zhao, MD · NPI 1497140214
Hospitalist physician in Mt. Kisco, New York. Individual provider, active in the CMS NPPES registry since March 30, 2015.
## Identity
- **NPI:** 1497140214 (Entity type: Individual)
- **Enumerated:** March 30, 2015
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 296844 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 400 EAST MAIN STREET, MEDICAL AFFAIRS, Mt. Kisco, NY 10549
- **Phone:** (914) 666-1200 · **Fax:** (914) 666-1965
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Northern Westchester Hospital Association (NPI 1457789075, Mount Kisco, NY); Westchester Medical Center Advanced Physician Services PC (NPI 1740687458, Valhalla, NY); Stamford Health Medical Group Inc (NPI 1154633980, Stamford, CT); North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** February 25, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1497140214) · Data from the CMS NPPES public registry.