Mary Kerner, CNM
NPI 1225454879 · Advanced Practice Midwife · Baltimore, MD
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Kerner, CNM is a Advanced Practice Midwife provider in Baltimore, MD (NPI 1225454879).
Provider details
- NPI number
- 1225454879
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- No
- License
- MW010371 (PA)
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 tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Medroxyprogesterone Acetate | 12 |
| Metronidazole | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
Practice location
Mailing address
Additional practice locations (2)
- 1693 S Queen StYork, PA 17403-4609Phone: (717) 845-1621
- 1693 S Queen StYork, PA 17403Phone: (717) 845-1621
Registry dates
- Enumerated
- 2014-03-06
- Last updated
- 2024-06-28
- Certified
- 2024-06-28
Frequently asked questions
- What is Mary Kerner's NPI number?
- Mary Kerner's National Provider Identifier (NPI) is 1225454879, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kerner's specialty?
- Mary Kerner is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Kerner located?
- Mary Kerner's practice location on file with NPPES is 1000 E Eager St, Baltimore, MD 21202-5533.
- What is Mary Kerner's phone number?
- The practice phone number listed in the NPPES registry for Mary Kerner is (410) 522-9800.
- Does Mary Kerner accept Medicare?
- Mary Kerner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Kerner's NPI active?
- Yes — Mary Kerner's NPI (1225454879) is active in the NPPES registry as of the last update on 2024-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.