Duke An Michael Phan, MD
Neurology Physician · Fountain Valley, CA
Duke An Michael Phan, MD is a neurology physician with a practice address in Fountain Valley, California, and NPI 1437352630, issued on Jun 6, 2007. Check the license (California A51193, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Duke An Michael Phan
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A51193 CA
Self-reported in NPPES; status is on the state search - Practice location
- 17220 Newhope St, Fountain Valley, CA 92708
- Phone
- (714) 546-4367
- Enumerated
- Jun 6, 2007
- Record last updated
- Mar 7, 2023
- Fax
- (714) 546-4361
- Medicaid ID
- 00A511930 CA
- Medicare enrollment
- Enrolled (PECOS I20070629000602); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 17220 Newhope St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Kim, DDSGeneral Practice Dentistry1073843660
- Kelly Lin, L.M.F.T.Marriage & Family Therapist1871902239
- Kaitlyn Nguyen, P.A.C.Medical Physician Assistant1043590250
- Philip Nisco, DDSOrthodontics and Dentofacial Orthopedics Dentistry1801019443
- Victor Siew, M.D.Geriatric Medicine (Internal Medicine) Physician1164515003
- Elisha Van Deusen, D.C.Chiropractor1265445837
Verify Duke An Michael Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A51193Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% more Medicare Part D claims than the average neurology physician in 2024
1,797 Medicare Part D claims for 219 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Donepezil Hcl335 claims
- Memantine Hcl168 claims
- Nortriptyline Hcl126 claims
- Pramipexole Dihydrochloride112 claims
- Gabapentin110 claims
- Levetiracetam104 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.
Industry payments in 2024: $277.92
3 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, 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.
Duke An Michael Phan among 2,339 neurology physician records in California
Duke An Michael Phan, 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1991 · median 2006 among the 1,628 with a school on file
- Record last updated2023 · 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 Fountain Valley → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Martin Backman, M.D.Santa Ana, CA 927081699738385
- Abdullah Ibish, MDFountain Valley, CA 927081154783397
- Tim Lai, M.D.Fountain Valley, CA 927081295094324
- Mehrdad Mahdad, M.D.Fountain Valley, CA 927081225092190
- Deepmala Nandanwar, M.D.Fountain Valley, CA 927081942685094
- Scott Shoemaker, MDFountain Valley, CA 927081881632784
- Daniel Truong, M.D.Fountain Valley, CA 927081992720916
- Kong Truong, M.D.Fountain Valley, CA 927081023329125
Common questions
What is Duke An Michael Phan, MD's NPI number?
Duke An Michael Phan, MD's National Provider Identifier (NPI) is 1437352630, issued on Jun 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Duke An Michael Phan, MD located?
The NPPES record lists a practice address at 17220 Newhope St, Fountain Valley, CA, 92708. Phone: (714) 546-4367. Providers update this record themselves, so call before visiting.
How can I verify Duke An Michael Phan, MD's license?
NPPES lists California license number A51193, 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 Duke An Michael Phan, MD prescribe under Medicare Part D?
In 2024, Duke An Michael Phan, MD had 1,797 Medicare Part D claims for 219 beneficiaries; 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.