Marilyn Geer Rivera, FNP-BC, NP-C
NPI 1275288979 · Nurse Practitioner · Lowell, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marilyn Geer Rivera, FNP-BC, NP-C is a Nurse Practitioner provider in Lowell, MA (NPI 1275288979).
Provider details
- NPI number
- 1275288979
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC, NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 0024183704 (VA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
4 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
18 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) |
|---|---|---|
| Hemoglobin A1c Level83036 | 18 | $10 |
Typical Medicare-allowed amounts for these services range $10–$10 (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 · 38 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 165 | 51 |
| Lisinopril | 120 | 33 |
| Omeprazole | 71 | 19 |
| Fluticasone Propionate | 53 | 17 |
| Amlodipine Besylate | 52 | 16 |
| Hydrochlorothiazide | 50 | 12 |
| Dulaglutidebrand: Trulicity | 46 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-02-21
- Last updated
- 2023-03-09
- Certified
- 2023-03-09
Frequently asked questions
- What is Marilyn Geer Rivera's NPI number?
- Marilyn Geer Rivera's National Provider Identifier (NPI) is 1275288979, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilyn Geer Rivera's specialty?
- Marilyn Geer Rivera is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marilyn Geer Rivera located?
- Marilyn Geer Rivera's practice location on file with NPPES is 161 Jackson St, Lowell, MA 01852-2103.
- What is Marilyn Geer Rivera's phone number?
- The practice phone number listed in the NPPES registry for Marilyn Geer Rivera is (978) 937-9700.
- Does Marilyn Geer Rivera accept Medicare?
- Marilyn Geer Rivera is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marilyn Geer Rivera's NPI active?
- Yes — Marilyn Geer Rivera's NPI (1275288979) is active in the NPPES registry as of the last update on 2023-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.