Callen Arthen Momtazee, MD
Neurology Physician · Los Angeles, CA
Callen Arthen Momtazee, MD is a neurology physician with a practice address in Los Angeles, California, and NPI 1740206051, issued on Jul 14, 2006. Check the license (California A83030, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Callen Arthen Momtazee
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A83030 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Medical Plaza, Los Angeles, CA 90095
- Phone
- (310) 794-1195
- Enumerated
- Jul 14, 2006
- Record last updated
- Jul 13, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicaid ID
- 00A830300 CA
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
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Verify Callen Arthen Momtazee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A83030Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average neurology physician in 2024
14 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 86% of 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.
Callen Arthen Momtazee among 2,339 neurology physician records in California
Callen Arthen Momtazee, MD 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 fileNo · 70% of these records are
- Record last updated2009 · 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.
All 2,339 in California → Every provider in Los Angeles → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- David Alexander, M.D.Los Angeles, CA 900951154371334
- Robert Baloh, MDLos Angeles, CA 900951801811252
- Ronnie Bergen, MDLos Angeles, CA 900951750353488
- Timothy Cloughesy, MDLos Angeles, CA 900951154356053
- Robert Collins, MDLos Angeles, CA 900951871518233
- Jeffrey Cummings, MDLos Angeles, CA 900951457376329
- Dawn Eliashiv, M.D.Los Angeles, CA 900951144286162
- Neeta Garg, MDLos Angeles, CA 900951649242728
Common questions
What is Callen Arthen Momtazee, MD's NPI number?
Callen Arthen Momtazee, MD's National Provider Identifier (NPI) is 1740206051, issued on Jul 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Callen Arthen Momtazee, MD located?
The NPPES record lists a practice address at 300 Medical Plaza, Los Angeles, CA, 90095. Phone: (310) 794-1195. Providers update this record themselves, so call before visiting.
How can I verify Callen Arthen Momtazee, MD's license?
NPPES lists California license number A83030, 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 Callen Arthen Momtazee, MD prescribe under Medicare Part D?
In 2024, Callen Arthen Momtazee, MD had 14 Medicare Part D claims; 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.