NPPES file of Aug 9, 2026

Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC

Family Nurse Practitioner · Annapolis, MD

Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC is a family nurse practitioner with a practice address in Annapolis, Maryland, and NPI 1801564646, issued on Sep 4, 2021. Check the license (Maryland R232666, as entered in NPPES) with the Maryland 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
1801564646
Name
Lauren Domenica Brennan
Credential
RN,MSN,CRNP, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License numbers
R232666 MD
2021035861 MD
Self-reported in NPPES; status is on the state search
Practice location
820 Bestgate RD, Annapolis, MD 21401
Phone
(410) 505-4265
Enumerated
Sep 4, 2021
Record last updated
Mar 18, 2025
Medicare enrollment
Enrolled (PECOS I20220223002008); accepts Medicare assignment
Medical or professional school
George Washington University School Of Medicine, 2021
Telehealth
Offers telehealth (CMS)
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.
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Also registered at 820 Bestgate RD

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

  1. Kent Aje, MDGastroenterology Physician1700381472
  2. Amanda Era, CRNPAdult Health Nurse Practitioner1649495250
  3. Mark Flasar, M.D.Gastroenterology Physician1326079278
  4. Georgette Mund, MGC, CGCGenetic Counselor (M.S.)1760712368
  5. Christopher Olenec, MDGastroenterology Physician1891968046
  6. Melissa Schweitzer, M.S.Genetic Counselor (M.S.)1235466905

Verify Lauren Domenica Brennan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license R232666
    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 Maryland license search

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10% fewer Medicare Part D claims than the average family nurse practitioner in 2024

1,171 Medicare Part D claims for 381 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Lauren Brennan1,171
  2. Specialty average1,305

Most prescribed

  1. Pantoprazole Sodium297 claims
  2. Famotidine220 claims
  3. Omeprazole81 claims
  4. Colestipol Hcl46 claims
  5. Dicyclomine Hcl46 claims
  6. Linzess45 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.

Industry payments in 2024: $771.22

14 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lauren Brennan$771.22
  2. Specialty average$650.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Lauren Domenica Brennan among 4,124 family nurse practitioner records in Maryland

Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 65% of them.

  • NPI issued2021 · 65% of these records are older, 28% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2021 · median 2019 among the 2,370 with a school on file
  • Record last updated2025 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

116 family nurse practitioner records list a practice address in Annapolis

They are 116 of the 3,629 NPPES records with a practice address in Annapolis, and 4,124 family nurse practitioner records in Maryland.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Tracy Adams, ARNPAnnapolis, MD 214011265431290
  2. Madelaine Binner, CRNPAnnapolis, MD 214011902870264
  3. Lauren Burkhead, CRNPAnnapolis, MD 214011295940443
  4. Eileen Delaney, CRNPAnnapolis, MD 214011710057427
  5. Karleen Leasure, CRNPAnnapolis, MD 214011073507802
  6. Simi Okuboye, NPAnnapolis, MD 214011942330667
  7. Hope Pennestri, CRNPAnnapolis, MD 214011295899219
  8. Jacqueline Runner, FNPAnnapolis, MD 214011396772257

Common questions

What is Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC's NPI number?

Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC's National Provider Identifier (NPI) is 1801564646, issued on Sep 4, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC located?

The NPPES record lists a practice address at 820 Bestgate RD, Annapolis, MD, 21401. Phone: (410) 505-4265. Providers update this record themselves, so call before visiting.

How can I verify Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC's license?

NPPES lists Maryland license number R232666, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC prescribe under Medicare Part D?

In 2024, Lauren Domenica Brennan, RN,MSN,CRNP, FNP-BC had 1,171 Medicare Part D claims for 381 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.