Nichol O'Marr, CRNP
NPI 1598726655 · Nurse Practitioner · Catonsville, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nichol O'Marr, CRNP is a Nurse Practitioner provider in Catonsville, MD (NPI 1598726655).
Provider details
- NPI number
- 1598726655
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R144756 (MD)
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 tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
98 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 75 | $69 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 23 | $14 |
Typical Medicare-allowed amounts for these services range $14–$69 (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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Calcitriol | 88 | 31 |
| Furosemide | 61 | 23 |
| Calcium Acetate | 60 | 18 |
| Amlodipine Besylate | 53 | 17 |
| Parenteral Amino Acid 20% No.1brand: Prosol | 50 | — |
| Hydralazine Hcl | 45 | — |
| Sevelamer Carbonate | 44 | 14 |
| Losartan Potassium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$274 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-29
- Last updated
- 2013-10-17
Frequently asked questions
- What is Nichol O'Marr's NPI number?
- Nichol O'Marr's National Provider Identifier (NPI) is 1598726655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nichol O'Marr's specialty?
- Nichol O'Marr is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nichol O'Marr located?
- Nichol O'Marr's practice location on file with NPPES is 516 N Rolling Rd, Catonsville, MD 21228-4140.
- What is Nichol O'Marr's phone number?
- The practice phone number listed in the NPPES registry for Nichol O'Marr is (410) 744-0890.
- Does Nichol O'Marr accept Medicare?
- Nichol O'Marr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nichol O'Marr's NPI active?
- Yes — Nichol O'Marr's NPI (1598726655) is active in the NPPES registry as of the last update on 2013-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.