Caroline Schreiber, M.D.
NPI 1972617637 · Family Medicine Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Schreiber, M.D. is a Family Medicine Physician provider in Oakland, CA (NPI 1972617637).
Provider details
- NPI number
- 1972617637
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A88848 (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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
914 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 | 372 | $104 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 183 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 174 | $36 |
| 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 | 60 | $19 |
| Administration of Influenza Virus VaccineG0008 | 31 | $39 |
| Admn Sarscov2 Vacc 1 Dose |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 80 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 275 | 78 |
| Levothyroxine Sodium | 161 | 48 |
| Amlodipine Besylate | 137 | 41 |
| Lisinopril | 108 | 34 |
| Losartan Potassium | 98 | 30 |
| Rosuvastatin Calcium | 92 | 36 |
| Hydrochlorothiazide |
Practice location
Mailing address
Additional practice locations (2)
- 3100 San Pablo Ave # 310Berkeley, CA 94702-2498Phone: (925) 985-5020
- 100 Hospital DriveSuite 304Vallejo, CA 94589-0000Phone: (707) 643-6483Fax: (707) 643-3018
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2018-05-23
Frequently asked questions
- What is Caroline Schreiber's NPI number?
- Caroline Schreiber's National Provider Identifier (NPI) is 1972617637, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Schreiber's specialty?
- Caroline Schreiber is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Schreiber located?
- Caroline Schreiber's practice location on file with NPPES is 3318 Elm St Ste 1, Oakland, CA 94609.
- What is Caroline Schreiber's phone number?
- The practice phone number listed in the NPPES registry for Caroline Schreiber is (510) 985-3620.
- Does Caroline Schreiber accept Medicare?
- Caroline Schreiber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Schreiber's NPI active?
- Yes — Caroline Schreiber's NPI (1972617637) is active in the NPPES registry as of the last update on 2018-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.