DR. IAN GEOFFREY WITTMAN M.D.
NPI 1164696522
Emergency Medicine in New York, NY
About Dr. Ian Geoffrey Wittman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IAN GEOFFREY WITTMAN M.D. (NPI 1164696522) is an individual emergency medicine provider in New York, New York, licensed in New York (255962) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Ian Geoffrey Wittman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Ian Wittman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
New York, NY 10016
- Reassigned Medicare billing, New York enrollment
- Also billed through NPI 1285826438 (New York)
- 1,074 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 10016 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEW YORK, NY 10016
NEW YORK, NY 10016
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 Ian Wittman's NPI number?
The NPI number for Ian Wittman is 1164696522. It was assigned to this individual provider in the NPPES registry on April 16, 2008.
Where is Ian Wittman located?
Ian Wittman practices at 462 1st Ave, New York, NY 10016. The listed phone number is (212) 562-4317.
What is Ian Wittman's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ian Wittman enrolled in Medicare?
Yes. Ian Wittman is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Ian Wittman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Wittman reassigns Medicare benefits to New York University (New York, NY). 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 Ian Wittman'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 Ian Wittman was last updated on March 24, 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.
# Dr. Ian Geoffrey Wittman, M.D. · NPI 1164696522
Emergency Medicine physician in New York, New York. Individual provider, active in the CMS NPPES registry since April 16, 2008.
## Identity
- **NPI:** 1164696522 (Entity type: Individual)
- **Enumerated:** April 16, 2008
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 255962 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 462 1ST AVE, New York, NY 10016-9196
- **Phone:** (212) 562-4317
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** New York University (NPI 1689665697, New York, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 24, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1164696522) · Data from the CMS NPPES public registry.