Katherine Gagan, MD
NPI 1770148850 · Family Medicine Physician · Plymouth, NH
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Gagan, MD is a Family Medicine Physician provider in Plymouth, NH (NPI 1770148850).
Provider details
- NPI number
- 1770148850
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 22604 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
223 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 52 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 52 | $13 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 47 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 39 | $8 |
| Blood Test, Thyroid Stimulating Hormone (tsh)84443 | 33 | $16 |
Typical Medicare-allowed amounts for these services range $8–$16 (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 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 190 | 61 |
| Levothyroxine Sodium | 122 | 40 |
| Amlodipine Besylate | 116 | 41 |
| Lisinopril | 103 | 44 |
| Metoprolol Tartrate | 91 | 19 |
| Gabapentin | 71 | 23 |
| Rosuvastatin Calcium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$564 across 30 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-05-05
- Last updated
- 2023-08-04
- Certified
- 2023-08-04
Frequently asked questions
- What is Katherine Gagan's NPI number?
- Katherine Gagan's National Provider Identifier (NPI) is 1770148850, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Gagan's specialty?
- Katherine Gagan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Gagan located?
- Katherine Gagan's practice location on file with NPPES is 101 Boulder Point Dr Ste 1, Plymouth, NH 03264-3170.
- What is Katherine Gagan's phone number?
- The practice phone number listed in the NPPES registry for Katherine Gagan is (603) 536-4000.
- Does Katherine Gagan accept Medicare?
- Katherine Gagan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Gagan's NPI active?
- Yes — Katherine Gagan's NPI (1770148850) is active in the NPPES registry as of the last update on 2023-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.