NPPES file of Aug 9, 2026

Sarah Lee O'Brien, M.D.

Interventional Pain Medicine Physician · Panorama City, CA

Sarah Lee O'Brien, M.D. is an interventional pain medicine physician with a practice address in Panorama City, California, and NPI 1134446727, issued on Apr 22, 2010. Check the license (California A121585, 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
1134446727
Name
Sarah Lee O'Brien
Credential
M.D.
Primary taxonomy
Interventional Pain Medicine Physician 208VP0014X
License number
A121585 CA
Self-reported in NPPES; status is on the state search
Practice location
8110 Woodman Ave, Panorama City, CA 91402
Phone
(818) 375-4100
Enumerated
Apr 22, 2010
Record last updated
Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150924001382); accepts Medicare assignment
Medical or professional school
University Of Missouri, Columbia School Of Medicine, 2010
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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8 nearest interventional pain medicine physician records → All 219 in California → Look up another NPI →

Also registered at 8110 Woodman Ave

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

  1. Asem Fitian, MDVascular & Interventional Radiology Physician1760945943
  2. Jennifer ImPharmacist1619427432
  3. Paul Lee, M.D.Otolaryngology Physician1962693168
  4. Jung Park, MDGastroenterology Physician1174855738
  5. Ali Razfar, MDFacial Plastic Surgery Physician1699093104
  6. Tara Song, MDOtolaryngology Physician1457640914

Verify Sarah Lee O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A121585    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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81% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024

448 Medicare Part D claims for 147 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. 78 claims were for opioids.

  1. Sarah O'Brien448
  2. Specialty average2,306

Most prescribed

  1. Gabapentin126 claims
  2. Pregabalin83 claims
  3. Duloxetine Hcl30 claims
  4. Tramadol Hcl25 claims
  5. Nortriptyline Hcl22 claims
  6. Baclofen19 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.

Bills Medicare through one group practice

  1. Southern California Permanente Medical GroupPanorama City, CA

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

Sarah Lee O'Brien among 219 interventional pain medicine physician records in California

Sarah Lee O'Brien, M.D. is one of 219 interventional pain medicine physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 71% of them.

  • NPI issued2010 · 71% of these records are older, 26% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2010 · median 2003 among the 167 with a school on file
  • Record last updated2021 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Pain Medicine Physician providers in California

There are 219 interventional pain medicine physician records in California.

All 219 in California → Every provider in Panorama City → Interventional Pain Medicine Physician nationwide →

The 8 interventional pain medicine physician records with the nearest ZIP codes

  1. Raul Calderon, M.D.Sherman Oaks, CA 914031134396492
  2. Matthew Root, DOSherman Oaks, CA 914231043593098
  3. Amir Friedman, MDEncino, CA 914361689662041
  4. Peyman GravoriEncino, CA 914361841615762
  5. Ramin Shamtob, M.D.Encino, CA 914361699741389
  6. Shaaron Zaghi, MDWoodland Hills, CA 913651215191242
  7. Kamyar Assil, MDThousand Oaks, CA 913601750321568
  8. David Hoenig, M.D.Tarzana, CA 913561225125529

Common questions

What is Sarah Lee O'Brien, M.D.'s NPI number?

Sarah Lee O'Brien, M.D.'s National Provider Identifier (NPI) is 1134446727, issued on Apr 22, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Sarah Lee O'Brien, M.D. located?

The NPPES record lists a practice address at 8110 Woodman Ave, Panorama City, CA, 91402. Phone: (818) 375-4100. Providers update this record themselves, so call before visiting.

How can I verify Sarah Lee O'Brien, M.D.'s license?

NPPES lists California license number A121585, 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 Sarah Lee O'Brien, M.D. prescribe under Medicare Part D?

In 2024, Sarah Lee O'Brien, M.D. had 448 Medicare Part D claims for 147 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.