NPPES file of Aug 9, 2026

Rachel Bystritsky

Infectious Disease Physician · San Francisco, CA

Rachel Bystritsky is an infectious disease physician with a practice address in San Francisco, California, and NPI 1194081984, issued on Apr 5, 2012. Check the license (California A142468, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194081984
Name
Rachel Bystritsky
Primary taxonomy
Infectious Disease Physician 207RI0200X
License numbers
A142468 CA
142468 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave FL 2, San Francisco, CA 94143
Phone
(415) 353-2626
Enumerated
Apr 5, 2012
Record last updated
Apr 16, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180629001466); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 400 Parnassus Ave FL 2

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Kelli CochranNurse Practitioner1093307878
  2. Gerd Cropp, M.D.Pediatric Pulmonology Physician1851497960
  3. John Fangman, MDInfectious Disease Physician1881645737
  4. Natalie Fong, NPAcute Care Nurse Practitioner1881317451
  5. Patricia Freeman, PASurgical Physician Assistant1396751764
  6. Jeffrey Harris, M.D.Pediatrics Physician1023128592

Verify Rachel Bystritsky in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A142468
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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18% more Medicare Part D claims than the average infectious disease physician in 2024

814 Medicare Part D claims for 146 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Rachel Bystritsky814
  2. Specialty average689

Most prescribed

  1. Doxycycline Hyclate132 claims
  2. Vancomycin Hcl55 claims
  3. Sulfamethoxazole-Trimethoprim54 claims
  4. Amoxicillin48 claims
  5. Amoxicillin-Clavulanate Potass39 claims
  6. Ciprofloxacin Hcl35 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 practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 3 group practices

  1. Regents OF The University OF CaliforniaSan Francisco, CA
  2. Ucsf Medical Group Business ServicesBurlingame, CA
  3. 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).

Rachel Bystritsky among 1,119 infectious disease physician records in California

Rachel Bystritsky is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.

  • NPI issued2012 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2012 · median 2003 among the 735 with a school on file
  • Record last updated2020 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Cameron Ashbaugh, MDSan Francisco, CA 941431114900537
  2. Oliver Bacon, M.D.San Francisco, CA 941431497863146
  3. Huyen Cao, MDSan Francisco, CA 941431700842234
  4. Peter Chin-Hong, MDSan Francisco, CA 941431215988563
  5. John Fangman, MDSan Francisco, CA 941431881645737
  6. Timothy Henrich, M.D.San Francisco, CA 941431902831902
  7. Vivek Jain, M.D.San Francisco, CA 941431093747248
  8. Jane Koehler, MDSan Francisco, CA 941431689632747

Common questions

What is Rachel Bystritsky's NPI number?

Rachel Bystritsky's National Provider Identifier (NPI) is 1194081984, issued on Apr 5, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Rachel Bystritsky located?

The NPPES record lists a practice address at 400 Parnassus Ave FL 2, San Francisco, CA, 94143. Phone: (415) 353-2626. Providers update this record themselves, so call before visiting.

How can I verify Rachel Bystritsky's license?

NPPES lists California license number A142468, 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 Rachel Bystritsky prescribe under Medicare Part D?

In 2024, Rachel Bystritsky had 814 Medicare Part D claims for 146 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Rachel Bystritsky's MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. 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.