Geraldine O'Shea, DO
NPI 1013910140 · Internal Medicine Physician · Jackson, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Geraldine O'Shea, DO is a Internal Medicine Physician provider in Jackson, CA (NPI 1013910140).
Provider details
- NPI number
- 1013910140
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
- License
- 20A7363 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
839 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 373 | $119 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 204 | $78 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 120 | $125 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 57 | $171 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 53 | $63 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 219 | 63 |
| Atorvastatin Calcium | 115 | 35 |
| Lisinopril | 113 | 32 |
| Levothyroxine Sodium | 111 | 33 |
| Amlodipine Besylate | 102 | 28 |
| Hydrochlorothiazide | 92 | 26 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-23
- Last updated
- 2008-03-05
Frequently asked questions
- What is Geraldine O'Shea's NPI number?
- Geraldine O'Shea's National Provider Identifier (NPI) is 1013910140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Geraldine O'Shea's specialty?
- Geraldine O'Shea is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Geraldine O'Shea located?
- Geraldine O'Shea's practice location on file with NPPES is 235 New York Ranch Rd, Jackson, CA 95642-2147.
- What is Geraldine O'Shea's phone number?
- The practice phone number listed in the NPPES registry for Geraldine O'Shea is (209) 257-1057.
- Does Geraldine O'Shea accept Medicare?
- Geraldine O'Shea is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Geraldine O'Shea's NPI active?
- Yes — Geraldine O'Shea's NPI (1013910140) is active in the NPPES registry as of the last update on 2008-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.