JOHN MARTIN NELSON JR. MD
NPI 1245328103
Orthopaedic Surgery in Purchase, NY
About John Martin Nelson Jr. Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN MARTIN NELSON JR. MD (NPI 1245328103) is an individual orthopaedic surgery provider in Purchase, New York, licensed in New York (150073) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS, is affiliated with Phelps Hospital, and is a graduate of Icahn School Of Medicine At Mount Sinai (1979).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 5
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
John Martin Nelson Jr. 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 Reassignment
Medicare enrollment records show John Nelson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Great Neck, NY 11021
- Reassigned Medicare billing, Connecticut and New York enrollments
- 16 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 12
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Phelps Hospital
Acute Care Hospitals · Sleepy Hollow, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10577 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 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PURCHASE, NY 10577
PURCHASE, NY 10577
PURCHASE, NY 10577
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 John Nelson's NPI number?
The NPI number for John Nelson is 1245328103. It was assigned to this individual provider in the NPPES registry on October 10, 2006.
Where is John Nelson located?
John Nelson practices at 3010 Westchester Ave Suite 104, Purchase, NY 10577. The listed phone number is (914) 967-8708.
What is John Nelson's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is John Nelson enrolled in Medicare?
Yes. John Nelson 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 John Nelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Nelson reassigns Medicare benefits to North Shore-Lij Medical PC (Great Neck, 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 John Nelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is John Nelson affiliated with any hospitals?
According to CMS data, John Nelson is affiliated with Phelps Hospital.
When was this NPI record last updated?
The NPPES record for John Nelson was last updated on September 3, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# John Martin Nelson Jr., MD · NPI 1245328103
Orthopaedic Surgery physician in Purchase, New York. Individual provider, active in the CMS NPPES registry since October 10, 2006.
## Identity
- **NPI:** 1245328103 (Entity type: Individual)
- **Enumerated:** October 10, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 150073 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 3010 WESTCHESTER AVE, SUITE 104, Purchase, NY 10577-2535
- **Phone:** (914) 967-8708 · **Fax:** (914) 967-5834
## 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:** North Shore-Lij Medical PC (NPI 1053688572, Great Neck, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1979
## Record status
- **NPPES last updated:** September 3, 2013
- **Other identifiers:** Medicare UPIN A62671; Medicare ID-Type Unspecified 41D791 (NY); Medicare ID-Type Unspecified 200001076 (CT); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1245328103) · Data from the CMS NPPES public registry.