NPPES file of Aug 9, 2026

Nathan Swanson, DDS

Dentist · Portsmouth, NH

Nathan Swanson, DDS is a dentist with a practice address in Portsmouth, New Hampshire, and NPI 1700985439, issued on Sep 21, 2006. Check the license (New Hampshire 3327, as entered in NPPES) with the New Hampshire board that licenses this profession; 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
1700985439
Name
Nathan Swanson
Credential
DDS
Primary taxonomy
Dentist 122300000X
License number
3327 NH
Self-reported in NPPES; status is on the state search
Practice location
100 Campus Dr, Portsmouth, NH 03801
Phone
(603) 422-8208
Enumerated
Sep 21, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(603) 422-8219
Medicaid ID
30302215 NH
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 100 Campus Dr

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

  1. Stephanie Ayan, APRNFamily Nurse Practitioner1861738320
  2. Jill Capobianco, ARNPNurse Practitioner1013015858
  3. Elizabeth Harrison, APRNNurse Practitioner1174801641
  4. Katherine Hollister, MDInternal Medicine Physician1386083962
  5. Jennifer Koop, MDFamily Medicine Physician1699769372
  6. Robert Millstein, MDInternal Medicine Physician1003094590

Verify Nathan Swanson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 3327
    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
Find 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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77% fewer Medicare Part D claims than the average dentist in 2024

20 Medicare Part D claims for 13 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D.

  1. Nathan Swanson20
  2. Specialty average86

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.

Nathan Swanson among 380 dentist records in New Hampshire

Nathan Swanson, DDS is one of 380 dentist records with a practice address in New Hampshire. 65% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 73% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dentist providers in New Hampshire

There are 380 dentist records in New Hampshire.

The 8 dentist records with the nearest ZIP codes

  1. Vitali Bondar, DDSPortsmouth, NH 038011508087065
  2. Marc Brown, DDSNewington, NH 038011750401048
  3. Carolyn Chase, DMDPortsmouth, NH 038011972547958
  4. Christopher Conroy, DMDPortsmouth, NH 038011669480695
  5. Peter Dinnerman, DMDPortsmouth, NH 038011710098207
  6. Michelle Dressler, DMDPortsmouth, NH 038011255711362
  7. Melanie Harden, DMDPortsmouth, NH 038011699873281
  8. Robert Herold, DMDPortsmouth, NH 038011548247935

Common questions

What is Nathan Swanson, DDS's NPI number?

Nathan Swanson, DDS's National Provider Identifier (NPI) is 1700985439, issued on Sep 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Swanson, DDS located?

The NPPES record lists a practice address at 100 Campus Dr, Portsmouth, NH, 03801. Phone: (603) 422-8208. Providers update this record themselves, so call before visiting.

How can I verify Nathan Swanson, DDS's license?

NPPES lists New Hampshire license number 3327, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan Swanson, DDS prescribe under Medicare Part D?

In 2024, Nathan Swanson, DDS had 20 Medicare Part D claims for 13 beneficiaries; the average among dentist prescribers was 86. 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.