Katrina Diederichs, ARNP
NPI 1821023607 · Family Nurse Practitioner · Dover, NH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Diederichs, ARNP is a Family Nurse Practitioner provider in Dover, NH (NPI 1821023607).
Provider details
- NPI number
- 1821023607
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- No
- License
- 031091-23 (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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
318 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 | 123 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 110 | $107 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 43 | $109 |
| Hemoglobin A1c Level83036 | 30 | $10 |
| Admn Sarscov2 Vacc 1 Dose90480 | 12 | $43 |
Typical Medicare-allowed amounts for these services range $10–$109 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 410 | 127 |
| Levothyroxine Sodium | 328 | 95 |
| Lisinopril | 278 | 75 |
| Amlodipine Besylate | 269 | 77 |
| Metoprolol Succinate | 233 | 75 |
| Omeprazole | 183 | 55 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Additional practice locations (2)
- 10 Members WaySuite 301Dover, NH 03820-5933Phone: (603) 742-3666Fax: (603) 742-6119
- 10 Members WaySuite 301Dover, NH 03820-5933Phone: (603) 742-3666Fax: (603) 742-6119
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2018-03-17
Frequently asked questions
- What is Katrina Diederichs's NPI number?
- Katrina Diederichs's National Provider Identifier (NPI) is 1821023607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Diederichs's specialty?
- Katrina Diederichs is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katrina Diederichs located?
- Katrina Diederichs's practice location on file with NPPES is 10 Members Way Fl 5, Dover, NH 03820-5933.
- What is Katrina Diederichs's phone number?
- The practice phone number listed in the NPPES registry for Katrina Diederichs is (603) 609-6800.
- Does Katrina Diederichs accept Medicare?
- Katrina Diederichs is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Diederichs's NPI active?
- Yes — Katrina Diederichs's NPI (1821023607) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.