Clifford Segil, D.O.
Neurology Physician · Santa Monica, CA
Clifford Segil, D.O. is a neurology physician with a practice address in Santa Monica, California, and NPI 1457556581, issued on Jun 19, 2007. Check the license (California 20A9399, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Clifford Segil
- Credential
- D.O.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 20A9399 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2001 Santa Monica Blvd, Santa Monica, CA 90404
- Phone
- (310) 828-3209
- Enumerated
- Jun 19, 2007
- Record last updated
- Dec 8, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (310) 828-5165
- Medicaid ID
- 20A9399 CA
- Medicare enrollment
- Enrolled (PECOS I20091027000200); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 2001 Santa Monica Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Clifford Segil in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average neurology physician in 2024
1,401 Medicare Part D claims for 196 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 28 claims were for opioids.
Most prescribed
- Memantine Hcl Er142 claims
- Donepezil Hcl121 claims
- Pregabalin118 claims
- Carbidopa-Levodopa81 claims
- Lacosamide62 claims
- Duloxetine Hcl53 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $368.60
11 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
Other neurology physician records in California
- Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
- John Aalbers, M.D.San Diego, CA1942262431
- Kafia Abbasi, M.D.French Camp, CA1215114897
- Puya Abbassi, D.O.San Jose, CA1831695428
- Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
- Diana Abdulrahman, M.D.Pomona, CA1518276880
- Hadi Abou El Hassan, MDLos Angeles, CA1053995720
- John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
- Saheil AboutalibLong Beach, CA1548551112
- Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522
Common questions
What is Clifford Segil, D.O.'s NPI number?
Clifford Segil, D.O.'s National Provider Identifier (NPI) is 1457556581, issued on Jun 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Clifford Segil, D.O. located?
The NPPES record lists a practice address at 2001 Santa Monica Blvd, Santa Monica, CA, 90404. Phone: (310) 828-3209. Providers update this record themselves, so call before visiting.
How can I verify Clifford Segil, D.O.'s license?
NPPES lists California license number 20A9399, 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 Clifford Segil, D.O. prescribe under Medicare Part D?
In 2024, Clifford Segil, D.O. had 1,401 Medicare Part D claims for 196 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Clifford Segil, D.O.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.