Dr. Callen Arthen Momtazee, MD
- Medicare services, 2016
- 20
- Part D claims, 2024
- 14
- Industry payments
- $4,782
- Affiliated sites
- 1
- Medical groups
- 2
- Practice address
- 14445 W Olive View Dr, Sylmar, CA 91342
- Practice phone
- Call (747) 210-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Olive View - UCLA Medical Center
Sylmar, California
Find Dr. Momtazee's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Callen Arthen Momtazee is a neurologist in Sylmar, California
Dr. Momtazee practices at Olive View - UCLA Medical Center in Sylmar, California.
Dr. Momtazee's NPI, 1740206051, was assigned on July 14, 2006. Dr. Momtazee graduated from Keck School of Medicine of USC in 2001. Dr. Momtazee holds California license A83030.
- NPI
- 1740206051NPI Registry (opens in a new tab)
- NPI enumeration date
- July 14, 2006
- NPI status
- Active
- Practice phone
- (747) 210-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Callen Arthen Momtazee practices at Olive View - UCLA Medical Center in Sylmar, California
Dr. Momtazee's primary practice is Olive View - UCLA Medical Center, at 14445 W Olive View Dr, Sylmar, CA 91342 in Los Angeles County. The practice phone is (747) 210-3300.
- Olive View - UCLA Medical Center14445 W Olive View Dr, Sylmar, CA 91342 · Los Angeles CountyPhone(747) 210-3300
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Callen Arthen Momtazee is affiliated with 2 sites of care and 2 medical groups
Dr. Momtazee's primary practice is Olive View - UCLA Medical Center in Sylmar, California. The medical group on file is Harbor-UCLA Medical Center. Dmand AI also links Dr. Momtazee to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Callen Arthen Momtazee's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Momtazee practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Olive View - UCLA Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Callen Arthen Momtazee is one of 2,207 neurologists in California
Neurology is Dr. Momtazee's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Momtazee is board certified in neurology by the American Board of Psychiatry and Neurology. Dr. Momtazee is licensed in California.
Specialties and state licenses
- Neurology, CaliforniaPrimary
Neurologists near Dr. Momtazee
Counts of neurologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Callen Arthen Momtazee billed Medicare for 20 services in 2016
CMS data shows 20 Medicare services from Dr. Momtazee across 1 procedure code in 2016, all of them office visits. Medicare paid $1,929 for them. Every service was in an office.
Dr. Momtazee compared with the California median for neurologists, 2016
- Dr. Momtazee
- California median
- Medicare services
- 20vs 40495% below
- Part D claims
- 11vs 32497% below
Medians across 1,995 neurologists in California with Dmand AI profiles that report each measure.
Dr. Momtazee's most billed Medicare procedure codes, 2016
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Callen Arthen Momtazee's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Momtazee's median patient age at 70, with 100% women.
Dr. Momtazee's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Callen Arthen Momtazee wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Momtazee wrote 14 Medicare Part D claims. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $34,167 in total drug cost. In 2017, CMS named 23 claims across 2 drugs.
Dr. Momtazee's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2023
- 2017
- 2023
- Claims for drugs CMS names
- 2017: 232023: 1152%
Drugs named by CMS: 1 in 2023, 2 in 2017.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Callen Arthen Momtazee received $4,782 in industry payments from 2016 to 2023
CMS Open Payments shows 8 general payments to Dr. Momtazee from 2 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 94% of the total. Shire North American Group Inc paid the most, $4,675.
General payments to Dr. Momtazee by program year, 2016 to 2023
General payments to Dr. Momtazee by kind, 2016 to 2023
- Consulting fees$4,50094%
- Food and beverage$1754%
- Education$1072%
Companies that paid Dr. Momtazee the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Callen Arthen Momtazee graduated from Keck School of Medicine of USC
Dr. Momtazee graduated from Keck School of Medicine of USC in 2001.
- Medical school
- Board certified in neurology
Source: Dmand AI Professional Profile Data
Dr. Callen Arthen Momtazee accepts plans from 6 insurance carriers
Dr. Momtazee is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- LA Care
- Regence Health Plans
Plan types Dr. Momtazee accepts, by number of carriers
- Medicare5
- PPO5
- HMO3
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Callen Arthen Momtazee's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Callen Arthen Momtazee
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Callen Arthen Momtazee's NPI number?
Dr. Callen Arthen Momtazee's NPI number is 1740206051. It was assigned on July 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Callen Arthen Momtazee?
Dr. Callen Arthen Momtazee is a neurologist in Sylmar, California. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Callen Arthen Momtazee practice?
Dr. Momtazee practices at 14445 W Olive View Dr, Sylmar, CA 91342. Dr. Momtazee's primary practice is Olive View - UCLA Medical Center in Sylmar, California. Dmand AI also links Dr. Momtazee to 1 group practice or clinic and 1 medical group.
What is Dr. Callen Arthen Momtazee's office phone number?
The practice phone on file for Dr. Momtazee is (747) 210-3300.
What is Dr. Callen Arthen Momtazee's medical license number?
Dr. Momtazee holds California license A83030.
What medical group is Dr. Callen Arthen Momtazee part of?
Dr. Momtazee is linked to Harbor-UCLA Medical Center. Dmand AI links Dr. Momtazee to 1 more medical group.
Does Dr. Callen Arthen Momtazee accept Medicare?
Yes. CMS data shows Dr. Momtazee billed Medicare for 20 services in 2016.
Is Dr. Callen Arthen Momtazee board certified?
Yes. Dr. Momtazee is board certified in neurology by the American Board of Psychiatry and Neurology.
What services does Dr. Callen Arthen Momtazee bill to Medicare?
In 2016, Dr. Momtazee's most billed Medicare services were office visit, established patient (99215).
Where did Dr. Callen Arthen Momtazee go to medical school?
Dr. Momtazee graduated from Keck School of Medicine of USC in 2001.
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What drugs does Dr. Callen Arthen Momtazee prescribe most?
In 2023 Medicare Part D data, Dr. Momtazee's most prescribed drugs by claims were Tecfidera.
Has Dr. Callen Arthen Momtazee received payments from drug or device companies?
CMS Open Payments shows $4,782 in general payments to Dr. Momtazee from 2 companies from 2016 to 2023. The largest total came from Shire North American Group Inc.
How long has Dr. Callen Arthen Momtazee been practicing?
Dr. Momtazee graduated from medical school in 2001, 25 years ago.
What insurance does Dr. Callen Arthen Momtazee accept?
Dr. Momtazee is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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