Eric W. Eisenberg, MD
Internal Medicine Physician · Portsmouth, NH
Eric W. Eisenberg, MD is an internal medicine physician with a practice address in Portsmouth, New Hampshire, and NPI 1427171545, issued on Apr 6, 2007. Check the license (New Hampshire 17915, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Eric W. Eisenberg
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 17915 NH
MD24359 ME
Self-reported in NPPES; status is on the state search - Practice location
- 8 Greenleaf Woods Dr, Portsmouth, NH 03801
- Phone
- (603) 422-8208
- Enumerated
- Apr 6, 2007
- Record last updated
- Mar 26, 2024
- Fax
- (603) 422-8218
- Medicare enrollment
- Enrolled (PECOS I20210525003316); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2000
- Entity
- Type 1 · individual
Also registered at 8 Greenleaf Woods Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Andelman, MDAnesthesiology Physician1760483960
- Angela Demien, PA-CPhysician Assistant1023573268
- Emily Follo, MDFamily Medicine Physician1801388079
- Benjamin Goldrich, MSWClinical Social Worker1245611359
- Allison Hansen, MPAS, PA-CMedical Physician Assistant1215775127
- Gene Harkless, ARNPFamily Nurse Practitioner1669544201
Verify Eric W. Eisenberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 17915Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,926 Medicare Part D claims for 519 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Atorvastatin Calcium254 claims
- Omeprazole189 claims
- Levothyroxine Sodium154 claims
- Amlodipine Besylate134 claims
- Lisinopril116 claims
- Pantoprazole Sodium93 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $142.70
6 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Greater Seacoast Community HealthSomersworth, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
37 internal medicine physician records list a practice address in Portsmouth
They are 37 of the 1,860 NPPES records with a practice address in Portsmouth, and 673 internal medicine physician records in New Hampshire.
All 37 in Portsmouth → All 673 in New Hampshire → Every provider in Portsmouth →
Other internal medicine physician records in New Hampshire
- Lauren Abbott, MDPortsmouth, NH1619597234
- Moaz AbdelrehimManchester, NH1962064790
- Champa Abeysinghe, M.D.New London, NH1629257134
- Munder Abuaisha, MDManchester, NH1265926406
- Indira AcharyaLebanon, NH1407428600
- Lisa Adams, MDLebanon, NH1912225186
- Ogechi Agogbuo, MDNew London, NH1265007595
- Anardi Agosto, M.D.Keene, NH1487090700
- Asma Ahmed, MDNashua, NH1972788073
- Annie Airey, DOLaconia, NH1487395141
Common questions
What is Eric W. Eisenberg, MD's NPI number?
Eric W. Eisenberg, MD's National Provider Identifier (NPI) is 1427171545, issued on Apr 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Eric W. Eisenberg, MD located?
The NPPES record lists a practice address at 8 Greenleaf Woods Dr, Portsmouth, NH, 03801. Phone: (603) 422-8208. Providers update this record themselves, so call before visiting.
How can I verify Eric W. Eisenberg, MD's license?
NPPES lists New Hampshire license number 17915, as entered by the provider. Search the New Hampshire Board of Medicine at https://www.oplc.nh.gov/board-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eric W. Eisenberg, MD prescribe under Medicare Part D?
In 2024, Eric W. Eisenberg, MD had 2,926 Medicare Part D claims for 519 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.