Joseph Oldenburg, M.D.
NPI 1881682193 · Ophthalmology Physician · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Oldenburg, M.D. is a Ophthalmology Physician provider in San Luis Obispo, CA (NPI 1881682193).
Provider details
- NPI number
- 1881682193
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G49343 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,637 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) |
|---|---|---|
| Imaging of Retina92134 | 450 | $22 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 450 | $132 |
| Established Patient Complete Exam of Visual System92014 | 378 | $133 |
| Imaging of Optic Nerve92133 | 253 | $20 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 234 | $94 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 167 | $34 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 595 | 165 |
| Prednisolone Acetate | 142 | 99 |
| Brimonidine Tartrate | 136 | 35 |
| Ofloxacin | 109 | 83 |
| Erythromycin Basebrand: Erythromycin | 101 | 76 |
| Tobramycin/Dexamethasonebrand: Tobramycin-Dexamethasone | 98 | 77 |
| Bromfenac Sodium | 90 | 57 |
| Timolol Maleate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$301 across 7 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
Registry dates
- Enumerated
- 2005-10-11
- Last updated
- 2016-03-31
Frequently asked questions
- What is Joseph Oldenburg's NPI number?
- Joseph Oldenburg's National Provider Identifier (NPI) is 1881682193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Oldenburg's specialty?
- Joseph Oldenburg is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Oldenburg located?
- Joseph Oldenburg's practice location on file with NPPES is 3855 Broad Street, San Luis Obispo, CA 93401.
- What is Joseph Oldenburg's phone number?
- The practice phone number listed in the NPPES registry for Joseph Oldenburg is (805) 545-7881.
- Does Joseph Oldenburg accept Medicare?
- Joseph Oldenburg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Oldenburg's NPI active?
- Yes — Joseph Oldenburg's NPI (1881682193) is active in the NPPES registry as of the last update on 2016-03-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.