Madeline Grandin
NPI 1669082483 · Family Nurse Practitioner · Portsmouth, NH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madeline Grandin is a Family Nurse Practitioner provider in Portsmouth, NH (NPI 1669082483).
Provider details
- NPI number
- 1669082483
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 076198-23 (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
306 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 118 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 109 | $77 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 48 | $111 |
| Urinalysis, Manual Test81002 | 17 | $3 |
| Administration of Influenza Virus VaccineG0008 | 14 | $32 |
Typical Medicare-allowed amounts for these services range $3–$111 (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 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 98 | 30 |
| Lisinopril | 71 | 23 |
| Levothyroxine Sodium | 62 | 16 |
| Amlodipine Besylate | 38 | 12 |
| Omeprazole | 27 | — |
| Rosuvastatin Calcium | 26 | — |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-08-06
- Last updated
- 2025-01-16
- Certified
- 2025-01-16
Frequently asked questions
- What is Madeline Grandin's NPI number?
- Madeline Grandin's National Provider Identifier (NPI) is 1669082483, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madeline Grandin's specialty?
- Madeline Grandin is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Madeline Grandin located?
- Madeline Grandin's practice location on file with NPPES is 200 Griffin Rd Ste 15, Portsmouth, NH 03801-7145.
- What is Madeline Grandin's phone number?
- The practice phone number listed in the NPPES registry for Madeline Grandin is (603) 373-0096.
- Does Madeline Grandin accept Medicare?
- Madeline Grandin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madeline Grandin's NPI active?
- Yes — Madeline Grandin's NPI (1669082483) is active in the NPPES registry as of the last update on 2025-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.