Jennifer Johnson, M.D.
NPI 1043582109 · Rheumatology Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Johnson, M.D. is a Rheumatology Physician provider in Mountain View, CA (NPI 1043582109).
Provider details
- NPI number
- 1043582109
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A127145 (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
14 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
455 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) |
|---|---|---|
| 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 | 165 | $19 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 100 | $70 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 71 | $199 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $155 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 44 | $109 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 135 | 55 |
| Methotrexate Sodiumbrand: Methotrexate | 86 | 36 |
| Hydroxychloroquine Sulfate | 53 | 22 |
| Allopurinol | 29 | — |
| Gabapentin | 22 | — |
| Alendronate Sodium | 20 | — |
| Duloxetine Hcl | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$34 across 2 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
- 2012-02-06
- Last updated
- 2023-01-10
- Certified
- 2023-01-10
Frequently asked questions
- What is Jennifer Johnson's NPI number?
- Jennifer Johnson's National Provider Identifier (NPI) is 1043582109, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Johnson's specialty?
- Jennifer Johnson is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Jennifer Johnson located?
- Jennifer Johnson's practice location on file with NPPES is 701 E El Camino Real, Mountain View, CA 94040-2833.
- What is Jennifer Johnson's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Johnson is (650) 934-7050.
- Does Jennifer Johnson accept Medicare?
- Jennifer Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Johnson's NPI active?
- Yes — Jennifer Johnson's NPI (1043582109) is active in the NPPES registry as of the last update on 2023-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.