Steven Sigurd Larmon, MD
Hematology & Oncology Physician · Keene, NH
Steven Sigurd Larmon, MD is a hematology & oncology physician with a practice address in Keene, New Hampshire, and NPI 1114943974, issued on Jul 14, 2006. Check the license (New Hampshire 6303, as entered in NPPES) on the New Hampshire Board of Medicine; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Steven Sigurd Larmon
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 6303 NH
Self-reported in NPPES; status is on the state search - Practice location
- 590 Court St, Keene, NH 03431
- Phone
- (603) 354-5454
- Enumerated
- Jul 14, 2006
- Record last updated
- Apr 3, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicaid ID
- 30001706 NH
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 76 in New Hampshire → Look up another NPI →
Also registered at 590 Court St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Anderson, M.D.Critical Care Medicine (Anesthesiology) Physician1790927168
- William Argie, PA-CMedical Physician Assistant1265519946
- Jeremy Arnold, M.D.Emergency Medicine Physician1174784557
- Payson Ayer-Dufner, PA-CPhysician Assistant1124424379
- Everett Bacon, MDEmergency Medicine Physician1669827143
- Samantha BarryFamily Nurse Practitioner1568004307
Verify Steven Sigurd Larmon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 6303Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Steven Sigurd Larmon among 76 hematology & oncology physician records in New Hampshire
Steven Sigurd Larmon, MD is one of 76 hematology & oncology physician records with a practice address in New Hampshire. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 45% newer
- In a Medicare fileNo · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in New Hampshire
There are 76 hematology & oncology physician records in New Hampshire. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 76 in New Hampshire → Every provider in Keene → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Robert Pritchard, MDKeene, NH 034311598745796
- Arvind Randhawa, M.D.Keene, NH 034311326203712
- Jill Winslow, M.D.Keene, NH 034311649378472
- Sonia Yu, MDKeene, NH 034311225665664
- Frederick Briccetti, MDConcord, NH 033011063406932
- Michael Buff, MDConcord, NH 033011699811547
- Charles Catcher, MDConcord, NH 033011114978749
- Gina Divenuti, MDConcord, NH 033011912958703
Common questions
What is Steven Sigurd Larmon, MD's NPI number?
Steven Sigurd Larmon, MD's National Provider Identifier (NPI) is 1114943974, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven Sigurd Larmon, MD located?
The NPPES record lists a practice address at 590 Court St, Keene, NH, 03431. Phone: (603) 354-5454. Providers update this record themselves, so call before visiting.
How can I verify Steven Sigurd Larmon, MD's license?
NPPES lists New Hampshire license number 6303, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.