Katrina Colby, APRN
NPI 1578178489 · Family Nurse Practitioner · Whitefield, NH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katrina Colby, APRN is a Family Nurse Practitioner provider in Whitefield, NH (NPI 1578178489).
Provider details
- NPI number
- 1578178489
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- No
- License
- 053246-23 (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
5 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
30 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 30 | $9 |
Typical Medicare-allowed amounts for these services range $9–$9 (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 · 79 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 395 | 104 |
| Lisinopril | 164 | 48 |
| Losartan Potassium | 124 | 33 |
| Levothyroxine Sodium | 116 | 31 |
| Metformin Hcl | 95 | 25 |
| Amlodipine Besylate | 91 | 22 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-09-09
- Last updated
- 2023-01-20
- Certified
- 2023-01-20
Frequently asked questions
- What is Katrina Colby's NPI number?
- Katrina Colby's National Provider Identifier (NPI) is 1578178489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katrina Colby's specialty?
- Katrina Colby is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katrina Colby located?
- Katrina Colby's practice location on file with NPPES is 14 King Sq, Whitefield, NH 03598-3346.
- What is Katrina Colby's phone number?
- The practice phone number listed in the NPPES registry for Katrina Colby is (603) 444-8271.
- Does Katrina Colby accept Medicare?
- Katrina Colby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katrina Colby's NPI active?
- Yes — Katrina Colby's NPI (1578178489) is active in the NPPES registry as of the last update on 2023-01-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.