Eric Eisenberg, MD
NPI 1427171545 · Internal Medicine Physician · Portsmouth, NH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Eisenberg, MD is a Internal Medicine Physician provider in Portsmouth, NH (NPI 1427171545).
Provider details
- NPI number
- 1427171545
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 17915 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
89 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 54 | $91 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Tracing93005 | 35 | $7 |
Typical Medicare-allowed amounts for these services range $7–$91 (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 · 56 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 254 | 115 |
| Omeprazole | 189 | 78 |
| Levothyroxine Sodium | 154 | 68 |
| Amlodipine Besylate | 134 | 67 |
| Lisinopril | 116 | 56 |
| Pantoprazole Sodium | 93 | 42 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$143 across 6 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
Additional practice locations (2)
- 25a June StSanford, ME 04073-2642Phone: (207) 490-7998
- 6 Healthcare Drive, Suite 2Rochester, NH 03867Phone: (603) 330-3404Fax: (603) 332-8175
Registry dates
- Enumerated
- 2007-04-06
- Last updated
- 2024-03-26
- Certified
- 2024-03-26
Frequently asked questions
- What is Eric Eisenberg's NPI number?
- Eric Eisenberg's National Provider Identifier (NPI) is 1427171545, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Eisenberg's specialty?
- Eric Eisenberg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Eisenberg located?
- Eric Eisenberg's practice location on file with NPPES is 8 Greenleaf Woods Dr, Portsmouth, NH 03801-5454.
- What is Eric Eisenberg's phone number?
- The practice phone number listed in the NPPES registry for Eric Eisenberg is (603) 422-8208.
- Does Eric Eisenberg accept Medicare?
- Eric Eisenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Eisenberg's NPI active?
- Yes — Eric Eisenberg's NPI (1427171545) is active in the NPPES registry as of the last update on 2024-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.