William Benjamin Feldmann, MD
Internal Medicine Physician · Salem, NH
William Benjamin Feldmann, MD is an internal medicine physician with a practice address in Salem, New Hampshire, and NPI 1508821984, issued on Apr 19, 2006. Check the license (New Hampshire 9800, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William Benjamin Feldmann
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 9800 NH
Self-reported in NPPES; status is on the state search - Practice location
- 22 Main St, Salem, NH 03079
- Phone
- (603) 893-7905
- Enumerated
- Apr 19, 2006
- Record last updated
- Sep 11, 2025
- Fax
- (603) 898-6106
- Medicare enrollment
- Enrolled (PECOS I20051227000334); accepts Medicare assignment
- Medical or professional school
- State University Of New York Downstate Medical Center, 1991
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 673 in New Hampshire → Look up another NPI →
Also registered at 22 Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Theresa Feldmann, MDPediatrics Physician1457635575
- Cheryl Francis, R.D, L.D.Registered Dietitian1104063015
- Ninah Izbicki, APRNFamily Nurse Practitioner1629930524
- Azar Korbey, MDFamily Medicine Physician1841278058
- Samantha Korbey, APRN, FNP-BCFamily Nurse Practitioner1518585421
- Joseph Ray, M.D.Internal Medicine Physician1861537847
Verify William Benjamin Feldmann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 9800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average internal medicine physician in 2024
3,833 Medicare Part D claims for 309 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 101 claims were for opioids.
Most prescribed
- Amlodipine Besylate272 claims
- Atorvastatin Calcium249 claims
- Lisinopril237 claims
- Levothyroxine Sodium226 claims
- Metoprolol Succinate156 claims
- Losartan Potassium140 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.
William Benjamin Feldmann among 673 internal medicine physician records in New Hampshire
William Benjamin Feldmann, MD is one of 673 internal medicine physician records with a practice address in New Hampshire. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · median 2005 among the 443 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 internal medicine physician records list a practice address in Salem
They are 7 of the 1,098 NPPES records with a practice address in Salem, and 673 internal medicine physician records in New Hampshire.
All 673 in New Hampshire → Every provider in Salem → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Joseph Gurka, D.O.Salem, NH 030791669494290
- Stephen Kirk, M.D.Salem, NH 030791750349619
- Christina McKinnis, D.O.Salem, NH 030791407119381
- Morgan MooreSalem, NH 030791851920623
- Joseph Ray, M.D.Salem, NH 030791861537847
- Yvonne Wilson, M.D.Salem, NH 030791710927538
- Jason Emmick, MDRaymond, NH 030771629069323
- L. John Klunk, MDRaymond, NH 030771891786588
Common questions
What is William Benjamin Feldmann, MD's NPI number?
William Benjamin Feldmann, MD's National Provider Identifier (NPI) is 1508821984, issued on Apr 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Benjamin Feldmann, MD located?
The NPPES record lists a practice address at 22 Main St, Salem, NH, 03079. Phone: (603) 893-7905. Providers update this record themselves, so call before visiting.
How can I verify William Benjamin Feldmann, MD's license?
NPPES lists New Hampshire license number 9800, 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 William Benjamin Feldmann, MD prescribe under Medicare Part D?
In 2024, William Benjamin Feldmann, MD had 3,833 Medicare Part D claims for 309 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.