AARON STEVEN GELLER MD
NPI 1831128479
Pain Medicine - Pain Medicine in Nashua, NH
About Aaron Steven Geller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON STEVEN GELLER MD (NPI 1831128479) is an individual pain medicine provider in Nashua, New Hampshire, licensed in New Hampshire (10423) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1991).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 7
Accepted 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
Aaron Steven Geller 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 Aaron Geller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Nashua, NH 03063
- Reassigned Medicare billing, New Hampshire enrollment
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 03063 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NASHUA, NH 03063
NASHUA, NH 03063
NASHUA, NH 03063
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 Aaron Geller's NPI number?
The NPI number for Aaron Geller is 1831128479. It was assigned to this individual provider in the NPPES registry on July 3, 2006.
Where is Aaron Geller located?
Aaron Geller practices at 154 Broad St, Nashua, NH 03063. The listed phone number is (603) 882-9872.
What is Aaron Geller's specialty?
The primary specialty registered for this NPI is Pain Medicine with taxonomy code 208VP0000X.
Is Aaron Geller enrolled in Medicare?
Yes. Aaron Geller 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 Aaron Geller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Geller reassigns Medicare benefits to Nashua Pain Management Corporation (Nashua, NH). 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 Aaron Geller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aaron Geller accept?
Health plans from Harvard Pilgrim Health Care and UnitedHealthcare list Aaron Geller 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.
When was this NPI record last updated?
The NPPES record for Aaron Geller was last updated on September 17, 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.
# Aaron Steven Geller, MD · NPI 1831128479
Pain Medicine physician in Nashua, New Hampshire. Individual provider, active in the CMS NPPES registry since July 3, 2006.
## Identity
- **NPI:** 1831128479 (Entity type: Individual)
- **Enumerated:** July 3, 2006
- **Primary specialty:** Pain Medicine - Pain Medicine · taxonomy 208VP0000X
- **State license:** 10423 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 154 BROAD ST, Nashua, NH 03063-3205
- **Phone:** (603) 882-9872 · **Fax:** (603) 465-7829
## 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:** Nashua Pain Management Corporation (NPI 1548299183, Nashua, NH), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1991
## Record status
- **NPPES last updated:** September 17, 2020
- **Other identifiers:** Other 200385180 (NH); Other 125324400 (NH); Other G03799 (NH); and 4 more
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Source: [NPI Profile](https://npiprofile.com/npi/1831128479) · Data from the CMS NPPES public registry.