Nichol L. O'Marr, CRNP
Nurse Practitioner · Catonsville, MD
Nichol L. O'Marr, CRNP is a nurse practitioner with a practice address in Catonsville, Maryland, and NPI 1598726655, issued on Mar 29, 2006. Check the license (Maryland R144756, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nichol L. O'Marr
- Credential
- CRNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- R144756 MD
Self-reported in NPPES; status is on the state search - Practice location
- 516 N Rolling RD, Catonsville, MD 21228
- Phone
- (410) 744-0890
- Enumerated
- Mar 29, 2006
- Record last updated
- Oct 17, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (410) 744-2007
- Medicaid ID
- 008316000 MD
- Medicare enrollment
- Enrolled (PECOS I20061002000094); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,248 in Maryland → Look up another NPI →
Also registered at 516 N Rolling RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Marcelino Albuerne, M.D.Geriatric Medicine (Internal Medicine) Physician1306817341
- Foriki AlmaLicensed Practical Nurse1467160887
- Robert Ammlung, M.D.Internal Medicine Physician1649225731
- Sandra Anoruo, PMHNPPsychiatric/Mental Health Nurse Practitioner1306497870
- Evan Chung, D.C., M.S.Chiropractor1689003071
- Victoria Dansereau-Ryan, PSY.D.Clinical Psychologist1558137836
Verify Nichol L. O'Marr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R144756Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% fewer Medicare Part D claims than the average nurse practitioner in 2024
749 Medicare Part D claims for 143 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Calcitriol88 claims
- Furosemide61 claims
- Calcium Acetate60 claims
- Amlodipine Besylate53 claims
- Prosol50 claims
- Hydralazine Hcl45 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: $273.71
11 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mid-Atlantic Nephrology Associates PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nichol L. O'Marr among 1,248 nurse practitioner records in Maryland
Nichol L. O'Marr, CRNP is one of 1,248 nurse practitioner records with a practice address in Maryland. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 74% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2005 · median 2018 among the 655 with a school on file
- Record last updated2013 · 48% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 nurse practitioner records list a practice address in Catonsville
They are 10 of the 1,023 NPPES records with a practice address in Catonsville, and 1,248 nurse practitioner records in Maryland.
All 1,248 in Maryland → Every provider in Catonsville → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Ilene Ademola, NPCatonsville, MD 212281194590869
- Leah Berry, NPCatonsville, MD 212281518440015
- Ann Butterworth, CRNPBaltimore, MD 212281316937329
- Suzanne Cerrone, AGPCNP-BCCatonsville, MD 212281083039192
- Christina Fang, CRNPCatonsville, MD 212281003179805
- Sumathi Jegannathan, ANPCatonsville, MD 212281831336171
- Joseph Labate, CRNP, MSN, RNCatonsville, MD 212281922716505
- Maria Lacson, CRNPCatonsville, MD 212281447805098
Common questions
What is Nichol L. O'Marr, CRNP's NPI number?
Nichol L. O'Marr, CRNP's National Provider Identifier (NPI) is 1598726655, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nichol L. O'Marr, CRNP located?
The NPPES record lists a practice address at 516 N Rolling RD, Catonsville, MD, 21228. Phone: (410) 744-0890. Providers update this record themselves, so call before visiting.
How can I verify Nichol L. O'Marr, CRNP's license?
NPPES lists Maryland license number R144756, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Nichol L. O'Marr, CRNP prescribe under Medicare Part D?
In 2024, Nichol L. O'Marr, CRNP had 749 Medicare Part D claims for 143 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.