Brian Lipson, M.D.
NPI 1821179391 · Allergy & Immunology (Internal Medicine) Physician · Rewood City, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brian Lipson, M.D. is a Allergy & Immunology (Internal Medicine) Physician provider in Rewood City, CA (NPI 1821179391).
Provider details
- NPI number
- 1821179391
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G057912 (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
19 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
5,514 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) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 2,591 | $5 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 1,637 | $19 |
| Test for Allergy Using Allergenic Extract Injected Into Skin95024 | 629 | $11 |
| Professional Service for Multiple Injections of Allergen95117 | 512 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 106 | $153 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration94060 | 22 | $51 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 30 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 23 | 11 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 18 | — |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 13 | — |
| Ipratropium Bromide | 13 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 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
- 2006-10-18
- Last updated
- 2023-03-07
Frequently asked questions
- What is Brian Lipson's NPI number?
- Brian Lipson's National Provider Identifier (NPI) is 1821179391, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brian Lipson's specialty?
- Brian Lipson is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Brian Lipson located?
- Brian Lipson's practice location on file with NPPES is 369 Main St., Rewood City, CA 94063-1729.
- What is Brian Lipson's phone number?
- The practice phone number listed in the NPPES registry for Brian Lipson is (650) 216-6111.
- Does Brian Lipson accept Medicare?
- Brian Lipson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brian Lipson's NPI active?
- Yes — Brian Lipson's NPI (1821179391) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.