NPPES file of Aug 9, 2026

Marilyn Geer Rivera, FNP-BC, NP-C

Nurse Practitioner · Lowell, MA

Marilyn Geer Rivera, FNP-BC, NP-C is a nurse practitioner with a practice address in Lowell, Massachusetts, and NPI 1275288979, issued on Feb 21, 2022. Check the license (Massachusetts RN2369820, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275288979
Name
Marilyn Geer Rivera
Credential
FNP-BC, NP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
RN2369820 MA
0024183704 VA
Self-reported in NPPES; status is on the state search
Practice location
161 Jackson St, Lowell, MA 01852
Phone
(978) 937-9700
Enumerated
Feb 21, 2022
Record last updated
Mar 9, 2023
Medicare enrollment
Enrolled (PECOS I20230321000262); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 161 Jackson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Majed Abbas, MDFamily Medicine Physician1346827870
  2. Frank Abekah, MDStudent in an Organized Health Care Education/Training Program1346185634
  3. Rafat Al-RejjalStudent in an Organized Health Care Education/Training Program1770079402
  4. Shannon AlperClinical Social Worker1306414396
  5. Joseph Aniello, CARCAddiction (Substance Use Disorder) Counselor1871151654
  6. Muthulakshimi Arumugam, MSN, FNPFamily Medicine Physician1871277251

Verify Marilyn Geer Rivera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2369820
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

38% more Medicare Part D claims than the average nurse practitioner in 2024

1,531 Medicare Part D claims for 158 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 13 claims were for opioids.

  1. Marilyn Geer Rivera1,531
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium165 claims
  2. Lisinopril120 claims
  3. Omeprazole71 claims
  4. Fluticasone Propionate53 claims
  5. Amlodipine Besylate52 claims
  6. Hydrochlorothiazide50 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Lowell Community Health Center, Inc.Lowell, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marilyn Geer Rivera among 3,480 nurse practitioner records in Massachusetts

Marilyn Geer Rivera, FNP-BC, NP-C is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 80% of them.

  • NPI issued2022 · 80% of these records are older, 14% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2021 · median 2017 among the 1,963 with a school on file
  • Record last updated2023 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

37 nurse practitioner records list a practice address in Lowell

They are 37 of the 2,992 NPPES records with a practice address in Lowell, and 3,480 nurse practitioner records in Massachusetts.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Sarah BradshawLowell, MA 018521346780525
  2. Tamra Brennan, NPCLowell, MA 018521366819435
  3. Lisa Brown, ARNPLowell, MA 018521396739934
  4. Tena Chau, DNP, FNP-CLowell, MA 018521528669264
  5. Sandra Creamer, PHD NPLowell, MA 018521871665026
  6. Tara Jean, MSN-FNP-CLowell, MA 018521922704790
  7. Amanda Lewis, MSN, RN, NP-CLowell, MA 018521538605803
  8. Dorothee LouisLowell, MA 018521720383177

Common questions

What is Marilyn Geer Rivera, FNP-BC, NP-C's NPI number?

Marilyn Geer Rivera, FNP-BC, NP-C's National Provider Identifier (NPI) is 1275288979, issued on Feb 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn Geer Rivera, FNP-BC, NP-C located?

The NPPES record lists a practice address at 161 Jackson St, Lowell, MA, 01852. Phone: (978) 937-9700. Providers update this record themselves, so call before visiting.

How can I verify Marilyn Geer Rivera, FNP-BC, NP-C's license?

NPPES lists Massachusetts license number RN2369820, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Marilyn Geer Rivera, FNP-BC, NP-C prescribe under Medicare Part D?

In 2024, Marilyn Geer Rivera, FNP-BC, NP-C had 1,531 Medicare Part D claims for 158 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.