Margaret Dermer, CRNP
NPI 1114505237 · Family Nurse Practitioner · Westminster, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Dermer, CRNP is a Family Nurse Practitioner provider in Westminster, MD (NPI 1114505237).
Provider details
- NPI number
- 1114505237
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- No
- License
- R211277 (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 tenure28% of score
5 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
352 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 189 | $89 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 73 | $78 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 23 | $67 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 19 | $114 |
| Administration of Influenza Virus VaccineG0008 | 18 | $34 |
| Automated Urinalysis Test81003 | 17 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 64 | 20 |
| Levothyroxine Sodium | 54 | 15 |
| Rosuvastatin Calcium | 52 | 16 |
| Amlodipine Besylate | 49 | 15 |
| Omeprazole | 45 | 16 |
| Duloxetine Hcl | 39 | 12 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-30
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Margaret Dermer's NPI number?
- Margaret Dermer's National Provider Identifier (NPI) is 1114505237, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Dermer's specialty?
- Margaret Dermer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Dermer located?
- Margaret Dermer's practice location on file with NPPES is 531 Old Westminster Pike Ste 201, Westminster, MD 21157-6276.
- What is Margaret Dermer's phone number?
- The practice phone number listed in the NPPES registry for Margaret Dermer is (410) 857-8536.
- Does Margaret Dermer accept Medicare?
- Margaret Dermer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Dermer's NPI active?
- Yes — Margaret Dermer's NPI (1114505237) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.