Johanna Wolgast, M.D.
NPI 1558467522 · Family Medicine Physician · San Mateo, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johanna Wolgast, M.D. is a Family Medicine Physician provider in San Mateo, CA (NPI 1558467522).
Provider details
- NPI number
- 1558467522
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A71643 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
447 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 | 137 | $152 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 76 | $196 |
| Automated Urinalysis Test81003 | 61 | $2 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 42 | $131 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 35 | $110 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19), Influenza Virus Types a and B, and Respiratory Syncytial Virus |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 42 | 40 |
| Doxycycline Hyclate | 19 | 19 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 16 | 16 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 15 | 15 |
| Naproxen | 13 | 13 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 13 |
| Prednisone | 12 |
Practice location
Mailing address
Additional practice locations (1)
- 225 Cabrillo Hwy SSuite 100aHalf Moon Bay, CA 94019-8200Phone: (650) 712-7330Fax: (650) 726-9317
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2020-06-22
- Certified
- 2020-06-22
Frequently asked questions
- What is Johanna Wolgast's NPI number?
- Johanna Wolgast's National Provider Identifier (NPI) is 1558467522, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johanna Wolgast's specialty?
- Johanna Wolgast is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Johanna Wolgast located?
- Johanna Wolgast's practice location on file with NPPES is 100 S San Mateo Dr, San Mateo, CA 94401-3805.
- What is Johanna Wolgast's phone number?
- The practice phone number listed in the NPPES registry for Johanna Wolgast is (650) 696-4427.
- Does Johanna Wolgast accept Medicare?
- Johanna Wolgast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johanna Wolgast's NPI active?
- Yes — Johanna Wolgast's NPI (1558467522) is active in the NPPES registry as of the last update on 2020-06-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.