Benjamin Gersten
NPI 1154895951 · Physician Assistant · Portsmouth, NH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Benjamin Gersten is a Physician Assistant provider in Portsmouth, NH (NPI 1154895951).
Provider details
- NPI number
- 1154895951
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1491 (NH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
837 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 229 | $108 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 113 | $76 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 89 | $7 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 88 | $109 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 54 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 44 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 58 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 162 | 63 |
| Amlodipine Besylate | 119 | 42 |
| Lisinopril | 113 | 40 |
| Rosuvastatin Calcium | 78 | 32 |
| Levothyroxine Sodium | 64 | 18 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 59 | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-01-15
- Last updated
- 2025-10-16
- Certified
- 2025-10-16
Frequently asked questions
- What is Benjamin Gersten's NPI number?
- Benjamin Gersten's National Provider Identifier (NPI) is 1154895951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Gersten's specialty?
- Benjamin Gersten is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Benjamin Gersten located?
- Benjamin Gersten's practice location on file with NPPES is 605 Lafayette Rd, Portsmouth, NH 03801-4783.
- What is Benjamin Gersten's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Gersten is (603) 658-2344.
- Does Benjamin Gersten accept Medicare?
- Benjamin Gersten is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Benjamin Gersten's NPI active?
- Yes — Benjamin Gersten's NPI (1154895951) is active in the NPPES registry as of the last update on 2025-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.