Jessica O'Brien, MD
NPI 1619311701 · Family Medicine Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jessica O'Brien, MD is a Family Medicine Physician provider in Milwaukee, WI (NPI 1619311701).
Provider details
- NPI number
- 1619311701
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 63088-20 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 62 | 21 |
| Atorvastatin Calcium | 43 | 16 |
| Lisinopril | 35 | 11 |
| Carvedilol | 29 | — |
| Pantoprazole Sodium | 27 | — |
| Gabapentin | 24 | — |
| Metformin Hcl | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-04-19
- Last updated
- 2025-10-13
- Certified
- 2025-10-13
Frequently asked questions
- What is Jessica O'Brien's NPI number?
- Jessica O'Brien's National Provider Identifier (NPI) is 1619311701, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jessica O'Brien's specialty?
- Jessica O'Brien is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jessica O'Brien located?
- Jessica O'Brien's practice location on file with NPPES is 5818 W Capitol Dr, Milwaukee, WI 53216-2247.
- What is Jessica O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Jessica O'Brien is (414) 449-2114.
- Does Jessica O'Brien accept Medicare?
- Jessica 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 Jessica O'Brien's NPI active?
- Yes — Jessica O'Brien's NPI (1619311701) is active in the NPPES registry as of the last update on 2025-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.