Anna Lang
NPI 1235556432 · Allergy & Immunology (Internal Medicine) Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anna Lang is a Allergy & Immunology (Internal Medicine) Physician provider in San Francisco, CA (NPI 1235556432).
Provider details
- NPI number
- 1235556432
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- A140236 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
71 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $107 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 22 | $158 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 16 | $121 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 11 | $199 |
Typical Medicare-allowed amounts for these services range $107–$199 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 110 | 26 |
| Immun Glob G(igg)/Pro/Iga 0-50brand: Hizentra | 80 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 42 | 12 |
| Azelastine Hcl | 35 | 15 |
| Fluticasone Propionate | 34 | — |
| Immun Glob G(igg)/Gly/Iga Ov50brand: Cuvitru | 26 | — |
| Omalizumabbrand: Xolair |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,453 across 18 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
Additional practice locations (1)
- 1959 Ne Pacific St.Seattle, WA 98195-0001Phone: (206) 520-5000
Registry dates
- Enumerated
- 2014-03-25
- Last updated
- 2025-10-19
- Certified
- 2025-10-19
Frequently asked questions
- What is Anna Lang's NPI number?
- Anna Lang's National Provider Identifier (NPI) is 1235556432, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anna Lang's specialty?
- Anna Lang is listed in the NPPES registry with a primary specialty of Allergy & Immunology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Anna Lang located?
- Anna Lang's practice location on file with NPPES is 400 Parnassus Ave, San Francisco, CA 94143-2202.
- What is Anna Lang's phone number?
- The practice phone number listed in the NPPES registry for Anna Lang is (415) 353-2961.
- Does Anna Lang accept Medicare?
- Anna Lang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anna Lang's NPI active?
- Yes — Anna Lang's NPI (1235556432) is active in the NPPES registry as of the last update on 2025-10-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.