Mallory O'Brien, FNP-C
NPI 1639311178 · Family Nurse Practitioner · Douglas, GA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mallory O'Brien, FNP-C is a Family Nurse Practitioner provider in Douglas, GA (NPI 1639311178).
Provider details
- NPI number
- 1639311178
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- RN233586 (GA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
17 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 111 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 271 | 70 |
| Atorvastatin Calcium | 268 | 70 |
| Gabapentin | 207 | 51 |
| Amlodipine Besylate | 201 | 60 |
| Levothyroxine Sodium | 201 | 58 |
| Allopurinol | 197 | 47 |
| Lisinopril | 189 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$312 across 18 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)
- 102 Nw Bowens Mill RoadDouglas, GA 31533-2252Phone: (912) 384-3838Fax: (912) 384-4029
Registry dates
- Enumerated
- 2009-03-30
- Last updated
- 2023-11-09
- Certified
- 2023-11-09
Frequently asked questions
- What is Mallory O'Brien's NPI number?
- Mallory O'Brien's National Provider Identifier (NPI) is 1639311178, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory O'Brien's specialty?
- Mallory O'Brien is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mallory O'Brien located?
- Mallory O'Brien's practice location on file with NPPES is 101 Bowens Mill Rd Ste H, Douglas, GA 31533-2252.
- What is Mallory O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Mallory O'Brien is (912) 384-3838.
- Does Mallory O'Brien accept Medicare?
- Mallory O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mallory O'Brien's NPI active?
- Yes — Mallory O'Brien's NPI (1639311178) is active in the NPPES registry as of the last update on 2023-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.