Alan H. Cohen, M.D.
Neurology Physician · Los Alamitos, CA
Alan H. Cohen, M.D. is a neurology physician with a practice address in Los Alamitos, California, and NPI 1902843659, issued on Jun 1, 2006. Check the license (California G20309, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alan H. Cohen
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G20309 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3791 Katella Ave, Los Alamitos, CA 90720
- Phone
- (562) 430-3114
- Enumerated
- Jun 1, 2006
- Record last updated
- Sep 3, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (562) 430-7718
- Medicare enrollment
- Enrolled (PECOS I20090204000534); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1965
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 3791 Katella Ave
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- Chinenye Egwuonwu, NPObstetrics & Gynecology Nurse Practitioner1184960890
- James Ger, M.D.Obstetrics & Gynecology Physician1598725368
Verify Alan H. Cohen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G20309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average neurology physician in 2024
224 Medicare Part D claims for 50 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Memantine Hcl50 claims
- Donepezil Hcl37 claims
- Galantamine Hbr15 claims
- Sumatriptan Succinate13 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 87.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $104.24
5 payments; by number, the most common kind was food and beverage; the largest payer was Argenx US, 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.
Bills Medicare through one group practice
- Southland Neurologic Institute A Medical CorporationLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alan H. Cohen among 2,339 neurology physician records in California
Alan H. Cohen, 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
- Graduated1965 · median 2006 among the 1,628 with a school on file
- Record last updated2011 · 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 Alamitos → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Omid Omidvar, M.D.Los Alamitos, CA 907201184678583
- Nirav Patel, M.D.Los Alamitos, CA 907201881631539
- Nima Ramezan Arab, M.D.Los Alamitos, CA 907201699705772
- David Rosenberg, M.D.Los Alamitos, CA 907201013959097
- Mohan Tadikonda, M.D.Los Alamitos, CA 907201326083858
- Michael Erlich, MDLakewood, CA 907121053456608
- Eileen Bardolph, MDHarbor City, CA 907101528135498
- Christopher Distasio, MDHarbor City, CA 907101639240518
Common questions
What is Alan H. Cohen, M.D.'s NPI number?
Alan H. Cohen, M.D.'s National Provider Identifier (NPI) is 1902843659, issued on Jun 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alan H. Cohen, M.D. located?
The NPPES record lists a practice address at 3791 Katella Ave, Los Alamitos, CA, 90720. Phone: (562) 430-3114. Providers update this record themselves, so call before visiting.
How can I verify Alan H. Cohen, M.D.'s license?
NPPES lists California license number G20309, 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 Alan H. Cohen, M.D. prescribe under Medicare Part D?
In 2024, Alan H. Cohen, M.D. had 224 Medicare Part D claims for 50 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Alan H. Cohen, M.D.'s MIPS final score?
The 2023 MIPS final score is 87.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.