DR. THOMAS JULIAN OW M.D.
NPI 1891094850
Otolaryngology in New York, NY
About Dr. Thomas Julian Ow M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. THOMAS JULIAN OW M.D. (NPI 1891094850) is an individual otolaryngology provider in New York, New York, licensed in New York (266122) and active in the NPI registry since March 2011. He is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (2004).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Thomas Julian Ow 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.
Medicare Billing Reassignments
3Medicare enrollment records show Thomas Ow reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New York, NY 10021
- Reassigned Medicare billing, New York enrollment
- 452 clinicians in this Medicare group
New York, NY 10025
- Reassigned Medicare billing, New York enrollment
- 5,251 clinicians in this Medicare group
Commack, NY 11725
- Reassigned Medicare billing, New York enrollment
- 265 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 3
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10021 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.
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 Thomas Ow's NPI number?
The NPI number for Thomas Ow is 1891094850. It was assigned to this individual provider in the NPPES registry on March 16, 2011.
Where is Thomas Ow located?
Thomas Ow practices at 530 E 74th St Fl 17, New York, NY 10021. The listed phone number is (347) 798-9663.
What is Thomas Ow's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Thomas Ow enrolled in Medicare?
Yes. Thomas Ow 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 Thomas Ow's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Ow reassigns Medicare benefits to 3 organizations: Mskcc Surgery Group (New York, NY), Montefiore Medical Center (New York, NY) and Mskcc Regional Network (Commack, 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 Thomas Ow'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 Thomas Ow was last updated on January 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Dr. Thomas Julian Ow, M.D. · NPI 1891094850
Otolaryngology physician in New York, New York. Individual provider, active in the CMS NPPES registry since March 16, 2011.
## Identity
- **NPI:** 1891094850 (Entity type: Individual)
- **Enumerated:** March 16, 2011
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** 266122 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 530 E 74TH ST FL 17, New York, NY 10021-3459
- **Phone:** (347) 798-9663
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Mskcc Surgery Group (NPI 1699766261, New York, NY); Montefiore Medical Center (NPI 1760288278, New York, NY); Mskcc Regional Network (NPI 1740251297, Commack, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 2004
## Record status
- **NPPES last updated:** January 23, 2025
- **Other identifiers:** Medicaid 00888239 (NY)
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Source: [NPI Profile](https://npiprofile.com/npi/1891094850) · Data from the CMS NPPES public registry.