John M. Riddell, MD
Anesthesiology Physician · Concord, NH
John M. Riddell, MD is an anesthesiology physician with a practice address in Concord, New Hampshire, and NPI 1174593073, issued on Jan 24, 2006. Check the license (New Hampshire 14640, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- John M. Riddell
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 14640 NH
228118 NY
Self-reported in NPPES; status is on the state search - Practice location
- 250 Pleasant St., Concord, NH 03301
- Phone
- (603) 789-9103
- Enumerated
- Jan 24, 2006
- Record last updated
- Dec 31, 2023
- Fax
- (603) 227-7832
- Medicaid IDs
- 1016847 VT
02394943 NY
30209066 NH - Medicare enrollment
- Enrolled (PECOS I20091123000444); may accept Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 1999
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 304 in New Hampshire → Look up another NPI →
Also registered at 250 Pleasant St.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ajita Amin, MDAnesthesiology Physician1659561181
- John Barksdale, MDFamily Medicine Physician1407809239
- Linda Beaudet, ARNPNurse Practitioner1801009055
- Jennifer Beaudry, CRNACertified Registered Nurse Anesthetist1538530621
- Suzanne Boulter, M.D.Pediatrics Physician1992700967
- Bryan Bridges, MDAnesthesiology Physician1679513329
Verify John M. Riddell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Hampshire Board of Medicine
Search for license 14640Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $232.67
10 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. The 17,774 providers of this specialty with any payment received $669.59 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 4 group practices
- Anesthesia Associates OF New England PCDerry, NH
- Concord Hospital IncConcord, NH
- Dartmouth-Hitchcock ClinicNashua, NH
- Emerson Endoscopy And Digestive Health Center, LLCConcord, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. Riddell among 304 anesthesiology physician records in New Hampshire
John M. Riddell, MD is one of 304 anesthesiology physician records with a practice address in New Hampshire. 74% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 44% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 2005 among the 210 with a school on file
- Record last updated2023 · 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 207L00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
37 anesthesiology physician records list a practice address in Concord
They are 37 of the 3,103 NPPES records with a practice address in Concord, and 304 anesthesiology physician records in New Hampshire.
All 304 in New Hampshire → Every provider in Concord → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Bryan Bridges, MDConcord, NH 033011679513329
- Edward Burzon, M.D.Concord, NH 033011942315957
- William Ennis, MDConcord, NH 033011356447254
- Robert Kramer, M.D.Concord, NH 033011720184633
- Robert Laflam, M.D.Concord, NH 033011669578589
- Kathryn Lemmon, MDConcord, NH 033011013997527
- Gregory Martin, M.D.Concord, NH 033011073543385
- Cynthia Mekler, CRNA, ARNPConcord, NH 033011427038942
Common questions
What is John M. Riddell, MD's NPI number?
John M. Riddell, MD's National Provider Identifier (NPI) is 1174593073, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John M. Riddell, MD located?
The NPPES record lists a practice address at 250 Pleasant St., Concord, NH, 03301. Phone: (603) 789-9103. Providers update this record themselves, so call before visiting.
How can I verify John M. Riddell, MD's license?
NPPES lists New Hampshire license number 14640, 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. 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.