Patrick Farrell, D.O.
NPI 1053765487 · Family Medicine Physician · Frederick, MD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Farrell, D.O. is a Family Medicine Physician provider in Frederick, MD (NPI 1053765487).
Provider details
- NPI number
- 1053765487
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 2018020870 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
835 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 | 297 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 166 | $86 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 113 | $128 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 87 | $16 |
| Administration of Influenza Virus VaccineG0008 | 64 | $32 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 114 | 42 |
| Levothyroxine Sodium | 81 | 22 |
| Rosuvastatin Calcium | 57 | 22 |
| Lisinopril | 54 | 20 |
| Amlodipine Besylate | 46 | 21 |
| Metoprolol Succinate | 45 | 12 |
| Zolpidem Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$675 across 40 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 (4)
- 180 S 3rd StSuite 300Belleville, IL 62220-1952Phone: (618) 233-5480Fax: (618) 222-4790
- 3 Saint Elizabeth Blvd Ste 4000O Fallon, IL 62269Phone: (618) 233-5480Fax: (618) 222-4790
- 100 Medical PlzLake St Louis, MO 63367-1366Phone: (636) 625-5200Fax: (636) 625-5314
- 300 1st Capitol DrSaint Charles, MO 63301-2844Phone: (636) 947-5000Fax: (636) 947-5090
Registry dates
- Enumerated
- 2016-04-22
- Last updated
- 2023-09-26
- Certified
- 2023-09-26
Frequently asked questions
- What is Patrick Farrell's NPI number?
- Patrick Farrell's National Provider Identifier (NPI) is 1053765487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Farrell's specialty?
- Patrick Farrell is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Farrell located?
- Patrick Farrell's practice location on file with NPPES is 9093 Ridgefield Dr Ste 104, Frederick, MD 21701-6711.
- What is Patrick Farrell's phone number?
- The practice phone number listed in the NPPES registry for Patrick Farrell is (301) 682-4100.
- Does Patrick Farrell accept Medicare?
- Patrick Farrell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Farrell's NPI active?
- Yes — Patrick Farrell's NPI (1053765487) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.