Payson Ayer-Dufner, PA-C
NPI 1124424379 · Physician Assistant · Keene, NH
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Payson Ayer-Dufner, PA-C is a Physician Assistant provider in Keene, NH (NPI 1124424379).
Provider details
- NPI number
- 1124424379
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 1055 (NH)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
294 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 94 | $54 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 90 | $81 |
| Injection Into Tendon Or Ligament20550 | 41 | $30 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $108 |
| Aspiration And/Or Injection of Fluid From Small Joint20600 | 16 | $33 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 75 | 73 |
| Meloxicam | 45 | 14 |
| Ondansetronbrand: Ondansetron Odt | 34 | 33 |
| Celecoxib | 24 | 21 |
| Pantoprazole Sodium | 17 | 17 |
| Gabapentin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 , 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-11-17
- Last updated
- 2014-12-01
Frequently asked questions
- What is Payson Ayer-Dufner's NPI number?
- Payson Ayer-Dufner's National Provider Identifier (NPI) is 1124424379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Payson Ayer-Dufner's specialty?
- Payson Ayer-Dufner is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Payson Ayer-Dufner located?
- Payson Ayer-Dufner's practice location on file with NPPES is 590 Court St, Keene, NH 03431-1719.
- What is Payson Ayer-Dufner's phone number?
- The practice phone number listed in the NPPES registry for Payson Ayer-Dufner is (603) 354-5482.
- Does Payson Ayer-Dufner accept Medicare?
- Payson Ayer-Dufner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Payson Ayer-Dufner's NPI active?
- Yes — Payson Ayer-Dufner's NPI (1124424379) is active in the NPPES registry as of the last update on 2014-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.