Mary Keegan, APN
NPI 1336157213 · Adult Health Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Keegan, APN is a Adult Health Nurse Practitioner provider in Saint Louis, MO (NPI 1336157213).
Provider details
- NPI number
- 1336157213
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 082605 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Nursing Service Providers
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
486 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 | 199 | $102 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 98 | $11 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 55 | $39 |
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 47 | $35 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 29 | $134 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, Each Additional 20 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 99 | 32 |
| Amlodipine Besylate | 76 | 29 |
| Metoprolol Succinate | 68 | 29 |
| Nitroglycerin | 58 | 32 |
| Apixabanbrand: Eliquis | 42 | 13 |
| Losartan Potassium | 40 | 12 |
| Isosorbide Dinitrate | 40 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$439 across 24 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
Additional practice locations (1)
- 130 Westmount DrFarmington, MO 63640-2970Phone: (573) 756-1813
Registry dates
- Enumerated
- 2006-08-04
- Last updated
- 2023-09-22
- Certified
- 2023-09-22
Frequently asked questions
- What is Mary Keegan's NPI number?
- Mary Keegan's National Provider Identifier (NPI) is 1336157213, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Keegan's specialty?
- Mary Keegan is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Keegan located?
- Mary Keegan's practice location on file with NPPES is 3660 Vista Ave, Saint Louis, MO 63110-2540.
- What is Mary Keegan's phone number?
- The practice phone number listed in the NPPES registry for Mary Keegan is (314) 977-6100.
- Does Mary Keegan accept Medicare?
- Mary Keegan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Keegan's NPI active?
- Yes — Mary Keegan's NPI (1336157213) is active in the NPPES registry as of the last update on 2023-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.