NPPES file of Aug 9, 2026

Daniel Underbakke, MD

Surgery Physician · Littleton, NH

Daniel Underbakke, MD is a surgery physician with a practice address in Littleton, New Hampshire, and NPI 1396164836, issued on Apr 14, 2014. Check the license (New Hampshire 18376, as entered in NPPES) on the New Hampshire Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396164836
Name
Daniel Underbakke
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
18376 NH
Self-reported in NPPES; status is on the state search
Practice location
600 Saint Johnsbury RD, Littleton, NH 03561
Phone
(800) 464-7731
Enumerated
Apr 14, 2014
Record last updated
Jun 19, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20200828000741); accepts Medicare assignment
Medical or professional school
University Of Wisconsin School Of Medicine, 2014
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 600 Saint Johnsbury RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Devon Barger, CRNACertified Registered Nurse Anesthetist1902855224
  2. Britney Bigelow, APRNNurse Practitioner1497344055
  3. Alexandra Bishop, MDOrthopaedic Surgery Physician1679465389
  4. Andrew BorgheseMedical Physician Assistant1811377518
  5. Hilary Bradshaw, OTR/LOccupational Therapist1780902072
  6. George Braff, MDDiagnostic Radiology Physician1235179821

Verify Daniel Underbakke in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Hampshire Board of Medicine
    Search for license 18376
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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65% fewer Medicare Part D claims than the average surgery physician in 2024

52 Medicare Part D claims for 44 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Daniel Underbakke52
  2. Specialty average147

Most prescribed

  1. Oxycodone Hcl29 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.

Bills Medicare through one group practice

  1. Littleton Hospital AssociationLittleton, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Daniel Underbakke among 196 surgery physician records in New Hampshire

Daniel Underbakke, MD is one of 196 surgery physician records with a practice address in New Hampshire. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 81% of them.

  • NPI issued2014 · 81% of these records are older, 17% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2014 · median 2005 among the 132 with a school on file
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 surgery physician records list a practice address in Littleton

They are 4 of the 304 NPPES records with a practice address in Littleton, and 196 surgery physician records in New Hampshire.

The 8 surgery physician records with the nearest ZIP codes

  1. Paul Arrington, M.D.Littleton, NH 035611104872738
  2. Benjamin Caesar, MDLittleton, NH 035611114487022
  3. Alice Rocke, MDLittleton, NH 035611184641029
  4. Christopher Glenney, MDBerlin, NH 035701477621035
  5. Patrick Golden, D.O.Berlin, NH 035701649408147
  6. Joseph Kiernan, MDLancaster, NH 035841699852095
  7. Maude Oetking, MDLancaster, NH 035841205813086
  8. Walter Voigt, MDLancaster, NH 035841780662353

Common questions

What is Daniel Underbakke, MD's NPI number?

Daniel Underbakke, MD's National Provider Identifier (NPI) is 1396164836, issued on Apr 14, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Daniel Underbakke, MD located?

The NPPES record lists a practice address at 600 Saint Johnsbury RD, Littleton, NH, 03561. Phone: (800) 464-7731. Providers update this record themselves, so call before visiting.

How can I verify Daniel Underbakke, MD's license?

NPPES lists New Hampshire license number 18376, 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 Daniel Underbakke, MD prescribe under Medicare Part D?

In 2024, Daniel Underbakke, MD had 52 Medicare Part D claims for 44 beneficiaries; the average among surgery physician prescribers was 147. 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.