Anna Lang
Allergy & Immunology (Internal Medicine) Physician · San Francisco, CA
Anna Lang is an allergy & immunology (internal medicine) physician with a practice address in San Francisco, California, and NPI 1235556432, issued on Mar 25, 2014. Check the license (California A140236, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Anna Lang
- Primary taxonomy
- Allergy & Immunology (Internal Medicine) Physician 207RA0201X
- License numbers
- A140236 CA
MD60958732 WA
Self-reported in NPPES; status is on the state search - Practice location
- 400 Parnassus Ave, San Francisco, CA 94143
- Phone
- (415) 353-2961
- Enumerated
- Mar 25, 2014
- Record last updated
- Oct 19, 2025
- Medicaid ID
- 1235556432 WA
- Medicare enrollment
- Enrolled (PECOS I20251031002319); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology (internal medicine) physician records → All 81 in California → Look up another NPI →
Also registered at 400 Parnassus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Abele, DPTPhysical Therapist1851648133
- Ian Adatia, MB CHBPediatric Cardiology Physician1427085299
- Daniel Adelman, M.D.Internal Medicine Physician1922041821
- Joshua Adler, MDInternal Medicine Physician1194781351
- Justin Ahn, M.D.Urology Physician1063755148
- Weiyun Ai, MDMedical Oncology Physician1649346842
Verify Anna Lang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A140236Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average allergy & immunology (internal medicine) physician in 2024
723 Medicare Part D claims for 71 beneficiaries, against an average of 789 among the 429 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.
Most prescribed
- Montelukast Sodium110 claims
- Hizentra80 claims
- Albuterol Sulfate Hfa42 claims
- Azelastine Hcl35 claims
- Fluticasone Propionate34 claims
- Cuvitru26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,452.88
18 payments; by number, the most common kind was food and beverage; the largest payer was Pharming Healthcare, Inc. The 321 providers of this specialty with any payment received $7,456.30 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- The Association OF University PhysiciansSeattle, WA
- Ucsf Medical Group Business ServicesBerkeley, CA
- University OF California San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Anna Lang among 81 allergy & immunology (internal medicine) physician records in California
Anna Lang is one of 81 allergy & immunology (internal medicine) physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 69% of them.
- NPI issued2014 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2014 · median 2010 among the 46 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology (Internal Medicine) Physician providers in California
There are 81 allergy & immunology (internal medicine) physician records in California.
All 81 in California → Every provider in San Francisco → Allergy & Immunology (Internal Medicine) Physician nationwide →
The 8 allergy & immunology (internal medicine) physician records with the nearest ZIP codes
- Rose MonahanSan Francisco, CA 941431518461268
- Iris Otani, M.D.San Francisco, CA 941431285925990
- Michele Pham, M.D.San Francisco, CA 941431194169300
- Kavitha ThiagarajanSan Francisco, CA 941431528695707
- Lulu TsaoSan Francisco, CA 941431780047779
- Warner Greene, M.D., PH.D.San Francisco, CA 941581528403797
- Lynn Spitler, MDSan Francisco, CA 941171588867535
- Von Nguyen, MDSan Francisco, CA 941151174815815
Common questions
What is Anna Lang's NPI number?
Anna Lang's National Provider Identifier (NPI) is 1235556432, issued on Mar 25, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Anna Lang located?
The NPPES record lists a practice address at 400 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-2961. Providers update this record themselves, so call before visiting.
How can I verify Anna Lang's license?
NPPES lists California license number A140236, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Anna Lang prescribe under Medicare Part D?
In 2024, Anna Lang had 723 Medicare Part D claims for 71 beneficiaries; the average among allergy & immunology (internal medicine) physician prescribers was 789. Part D covers Medicare prescriptions only.
What is Anna Lang's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.