Elizabeth Johnston, CRNP, CNM
NPI 1629427109 · Obstetrics & Gynecology Nurse Practitioner · Baltimore, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Johnston, CRNP, CNM is a Obstetrics & Gynecology Nurse Practitioner provider in Baltimore, MD (NPI 1629427109).
Provider details
- NPI number
- 1629427109
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP, CNM
- Sex
- Female
- Sole proprietor
- No
- License
- R201041 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
10 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
222 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) |
|---|---|---|
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 63 | $35 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 34 | $50 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 27 | $39 |
| Stool Analysis for Blood to Screen for Colon Tumors82270 | 22 | $4 |
| Automated Urinalysis Test81003 | 14 | $2 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 89 | 48 |
| Terconazole | 25 | 22 |
| Clotrimazole/Betamethasone Dipbrand: Clotrimazole-Betamethasone | 21 | 15 |
| Fluconazole | 15 | 14 |
| Metronidazole | 13 | — |
| Valacyclovir Hclbrand: Valacyclovir | 13 | — |
| Estradiolbrand: Yuvafem | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$35 across 1 record (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
- 2016-06-06
- Last updated
- 2025-02-19
- Certified
- 2025-02-19
Frequently asked questions
- What is Elizabeth Johnston's NPI number?
- Elizabeth Johnston's National Provider Identifier (NPI) is 1629427109, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Johnston's specialty?
- Elizabeth Johnston is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Elizabeth Johnston located?
- Elizabeth Johnston's practice location on file with NPPES is 3333 N Calvert St Ste 650, Baltimore, MD 21218-6516.
- What is Elizabeth Johnston's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Johnston is (410) 554-7333.
- Does Elizabeth Johnston accept Medicare?
- Elizabeth Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Johnston's NPI active?
- Yes — Elizabeth Johnston's NPI (1629427109) is active in the NPPES registry as of the last update on 2025-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.