Keisha Mahoney, FNP
NPI 1255731501 · Family Nurse Practitioner · Smithtown, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Keisha Mahoney, FNP is a Family Nurse Practitioner provider in Smithtown, NY (NPI 1255731501).
Provider details
- NPI number
- 1255731501
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 33339112 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
4,730 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 2,876 | $75 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 1,829 | $109 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 13 | $132 |
| Advance Care Planning, First 30 Minutes99497 | 12 | $76 |
Typical Medicare-allowed amounts for these services range $75–$132 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 85 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 230 | 22 |
| Mirtazapine | 193 | — |
| Torsemide | 183 | 11 |
| Apixabanbrand: Eliquis | 166 | — |
| Potassium Chloride | 148 | 24 |
| Amlodipine Besylate | 145 | 13 |
| Levothyroxine Sodium | 144 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-08-23
- Last updated
- 2014-08-23
Frequently asked questions
- What is Keisha Mahoney's NPI number?
- Keisha Mahoney's National Provider Identifier (NPI) is 1255731501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keisha Mahoney's specialty?
- Keisha Mahoney is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Keisha Mahoney located?
- Keisha Mahoney's practice location on file with NPPES is 20 Steven Pl, Smithtown, NY 11787-5423.
- What is Keisha Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Keisha Mahoney is (516) 754-0073.
- Does Keisha Mahoney accept Medicare?
- Keisha Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Keisha Mahoney's NPI active?
- Yes — Keisha Mahoney's NPI (1255731501) is active in the NPPES registry as of the last update on 2014-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.