NPPES file of Aug 9, 2026

Arshia Sadreddin

Neurology Physician · San Francisco, CA

Arshia Sadreddin is a neurology physician with a practice address in San Francisco, California, and NPI 1033308903, issued on Oct 17, 2007. Check the license (California A121600, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033308903
Name
Arshia Sadreddin
Primary taxonomy
Neurology Physician 2084N0400X
License numbers
A121600 CA
41357 AZ
Self-reported in NPPES; status is on the state search
Practice location
2100 Webster St Ste 115, San Francisco, CA 94115
Phone
(415) 600-7886
Enumerated
Oct 17, 2007
Record last updated
Jul 30, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
439617 AZ
Medicare enrollment
Enrolled (PECOS I20140114000759); 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 2100 Webster St Ste 115

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

  1. Timothy Chen, M.D.Gastroenterology Physician1699017707
  2. Jesse Liu, MDGastroenterology Physician1043348618
  3. Aristotle Mendiola, M.D.Gastroenterology Physician1871518266
  4. Nelli Perkins, M.D.Neurology Physician1740592112
  5. Michael Verhille, M.D.Gastroenterology Physician1851324537
  6. John WangGastroenterology Physician1518429869

Verify Arshia Sadreddin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A121600
    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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48% fewer Medicare Part D claims than the average neurology physician in 2024

713 Medicare Part D claims for 173 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.

  1. Arshia Sadreddin713
  2. Specialty average1,370

Most prescribed

  1. Carbidopa-Levodopa Er186 claims
  2. Carbidopa-Levodopa144 claims
  3. Rytary51 claims
  4. Entacapone42 claims
  5. Donepezil Hcl27 claims
  6. Escitalopram Oxalate22 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.

Industry payments in 2024: $2,145.63

24 payments; by number, the most common kind was food and beverage; the largest payer was Amneal Pharmaceuticals LLC. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Arshia Sadreddin$2,145.63
  2. Specialty average$8,318.07

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Francisco, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Arshia Sadreddin among 2,339 neurology physician records in California

Arshia Sadreddin is one of 2,339 neurology physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2004 · median 2006 among the 1,628 with a school on file
  • Record last updated2018 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in California

There are 2,339 neurology physician records in California.

The 8 neurology physician records with the nearest ZIP codes

  1. Sara Doster, M.D.,PH.D.San Francisco, CA 941151467526079
  2. Kenneth Fox, MDSan Francisco, CA 941151710065370
  3. Arnold Greenberg, M.D.San Francisco, CA 941151780616177
  4. Marina Kasavin, M.D., PH.D.San Francisco, CA 941151326015132
  5. Jonathan Katz, M.D.San Francisco, CA 941151457372823
  6. Morris Levin, M.D.San Francisco, CA 941151538117403
  7. Aaron Lewis, MDSan Francisco, CA 941151255419750
  8. Ko-Myong Lieu, MDSan Francisco, CA 941151376513846

Common questions

What is Arshia Sadreddin's NPI number?

Arshia Sadreddin's National Provider Identifier (NPI) is 1033308903, issued on Oct 17, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Arshia Sadreddin located?

The NPPES record lists a practice address at 2100 Webster St Ste 115, San Francisco, CA, 94115. Phone: (415) 600-7886. Providers update this record themselves, so call before visiting.

How can I verify Arshia Sadreddin's license?

NPPES lists California license number A121600, 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 Arshia Sadreddin prescribe under Medicare Part D?

In 2024, Arshia Sadreddin had 713 Medicare Part D claims for 173 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.

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.