Mary Ahern, MD
NPI 1700413499 · Obstetrics & Gynecology Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ahern, MD is a Obstetrics & Gynecology Physician provider in Baltimore, MD (NPI 1700413499).
Provider details
- NPI number
- 1700413499
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D0099639 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$188 across 8 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
- 2020-03-24
- Last updated
- 2024-07-02
- Certified
- 2024-07-02
Frequently asked questions
- What is Mary Ahern's NPI number?
- Mary Ahern's National Provider Identifier (NPI) is 1700413499, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ahern's specialty?
- Mary Ahern is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ahern located?
- Mary Ahern's practice location on file with NPPES is 6565 N Charles St Ste 212, Baltimore, MD 21204-5805.
- What is Mary Ahern's phone number?
- The practice phone number listed in the NPPES registry for Mary Ahern is (410) 823-1120.
- Does Mary Ahern accept Medicare?
- Mary Ahern is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ahern's NPI active?
- Yes — Mary Ahern's NPI (1700413499) is active in the NPPES registry as of the last update on 2024-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.