NPPES file of Aug 9, 2026

Natalie Diaz, M.D.

Neurology Physician · Torrance, CA

Natalie Diaz, M.D. is a neurology physician with a practice address in Torrance, California, and NPI 1871516492, issued on Jul 25, 2006. Check the license (California A86649, 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
1871516492
Name
Natalie Diaz
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
A86649 CA
Self-reported in NPPES; status is on the state search
Practice location
5215 Torrance Blvd Ste 300, Torrance, CA 90503
Phone
(424) 212-5361
Enumerated
Jul 25, 2006
Record last updated
Mar 31, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(310) 316-3466
Medicare enrollment
Enrolled (PECOS I20050112001049); 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 5215 Torrance Blvd Ste 300

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

  1. Jared Chow, PA-CPhysician Assistant1518481704
  2. Steven Dillavou, P.A.-C.Physician Assistant1003171851
  3. Jonathan Finley, FNP-BCFamily Nurse Practitioner1336752542
  4. Jian Guan, M.D.Neurological Surgery Physician1811262009
  5. Jean-Philippe LangevinNeurological Surgery Physician1902047228
  6. Lidia Lee, PA-CPhysician Assistant1740814219

Verify Natalie Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A86649
    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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2.5 times the Medicare Part D claims of the average neurology physician in 2024

3,438 Medicare Part D claims for 373 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Natalie Diaz3,438
  2. Specialty average1,370

Most prescribed

  1. Carbidopa-Levodopa676 claims
  2. Carbidopa-Levodopa Er506 claims
  3. Rytary152 claims
  4. Gabapentin149 claims
  5. Pramipexole Dihydrochloride135 claims
  6. Memantine Hcl111 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: $796.38

28 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. 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. Natalie Diaz$796.38
  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. Providence Saint Johns Medical FoundationSanta Monica, CA

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

Natalie Diaz among 2,339 neurology physician records in California

Natalie Diaz, M.D. 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 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2000 · median 2006 among the 1,628 with a school on file
  • Record last updated2021 · 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. Heros Amerkhanian, DO, MPHTorrance, CA 905031760045785
  2. Allison Arch, M.D.Torrance, CA 905031043509953
  3. Prakash Desai, D.O.Torrance, CA 905031477759975
  4. Yih-Lin Nien, M.D.Torrance, CA 905031821204314
  5. Robert Rafael, M.D.Torrance, CA 905031265586895
  6. Eric TamrazianTorrance, CA 905031881078251
  7. Samra Vazirian, MDTorrance, CA 905031346669389
  8. Jeff Victoroff, M.D.Torrance, CA 905031144302829

Common questions

What is Natalie Diaz, M.D.'s NPI number?

Natalie Diaz, M.D.'s National Provider Identifier (NPI) is 1871516492, issued on Jul 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Natalie Diaz, M.D. located?

The NPPES record lists a practice address at 5215 Torrance Blvd Ste 300, Torrance, CA, 90503. Phone: (424) 212-5361. Providers update this record themselves, so call before visiting.

How can I verify Natalie Diaz, M.D.'s license?

NPPES lists California license number A86649, 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 Natalie Diaz, M.D. prescribe under Medicare Part D?

In 2024, Natalie Diaz, M.D. had 3,438 Medicare Part D claims for 373 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.