What is John Ahern's NPI number?

John Ahern's National Provider Identifier (NPI) is 1821175738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Ahern's specialty?

John Ahern is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is John Ahern located?

John Ahern's practice location on file with NPPES is 1 Hampton Rd Unit 305, Exeter, NH 03833-4891.

What is John Ahern's phone number?

The practice phone number listed in the NPPES registry for John Ahern is (603) 583-4533.

Is John Ahern's NPI active?

Yes — John Ahern's NPI (1821175738) is active in the NPPES registry as of the last update on 2019-12-31.

IndividualActive

John Ahern, D.D.S.

NPI 1821175738 · General Practice Dentistry · Exeter, NH

John Ahern, D.D.S. is a General Practice Dentistry provider in Exeter, NH (NPI 1821175738).

Provider details

NPI number: 1821175738
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: D.D.S.
Sex: Male
Sole proprietor: No
License: 2017 (NH)

Practice location

1 Hampton Rd Unit 305

Exeter, NH 03833-4891

Phone: (603) 583-4533

Fax: (603) 583-4507

Street-level locationGet directions

More NH providers

Mailing address

1 Hampton Rd Unit 305

Exeter, NH 03833-4891

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 2017 (NH)
Dental Providers

Profile Score

Detailed profile(92/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure33% of score
20 yrs in NPPES registry
Profile completeness33% of score
100% of core fields populated
Practice footprint20% of score
1 documented practice location
Open Payments transparency13% of score
Has Open Payments disclosures (2024)

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.

Drug	Part D claims (2024)	Beneficiaries
Amoxicillin	16	13

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$162 across 9 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2006-11-01
Last updated: 2019-12-31
Certified: 2019-12-31

Frequently asked questions

What is John Ahern's NPI number?: John Ahern's National Provider Identifier (NPI) is 1821175738, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is John Ahern's specialty?: John Ahern is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is John Ahern located?: John Ahern's practice location on file with NPPES is 1 Hampton Rd Unit 305, Exeter, NH 03833-4891.
What is John Ahern's phone number?: The practice phone number listed in the NPPES registry for John Ahern is (603) 583-4533.
Is John Ahern's NPI active?: Yes — John Ahern's NPI (1821175738) is active in the NPPES registry as of the last update on 2019-12-31.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Frequently asked questions