Stuart Geffner, M.D.
NPI 1649213422 · Specialist · Livingston, NJ
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stuart Geffner, M.D. is a Specialist provider in Livingston, NJ (NPI 1649213422).
Provider details
- NPI number
- 1649213422
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 25MA05451600 (NJ)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
63 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Transplantation of Donor Kidney50360 | 30 | $2,063 |
| Preparation of Donor Kidney for Transplantation50323 | 18 | $184 |
| Insertion of Stent in Ureter50605 | 15 | $469 |
Typical Medicare-allowed amounts for these services range $184–$2,063 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,743 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-13
- Last updated
- 2015-02-17
Frequently asked questions
- What is Stuart Geffner's NPI number?
- Stuart Geffner's National Provider Identifier (NPI) is 1649213422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stuart Geffner's specialty?
- Stuart Geffner is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Stuart Geffner located?
- Stuart Geffner's practice location on file with NPPES is 94 Old Short Hills Rd, Livingston, NJ 07039-5672.
- What is Stuart Geffner's phone number?
- The practice phone number listed in the NPPES registry for Stuart Geffner is (973) 322-9801.
- Does Stuart Geffner accept Medicare?
- Stuart Geffner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stuart Geffner's NPI active?
- Yes — Stuart Geffner's NPI (1649213422) is active in the NPPES registry as of the last update on 2015-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.