Denise A.d. Phan, M.D.
Internal Medicine Physician · Van Nuys, CA
Denise A.d. Phan, M.D. is an internal medicine physician with a practice address in Van Nuys, California, and NPI 1477656395, issued on Sep 6, 2006. Check the license (California G73973, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Denise A.d. Phan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G73973 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15243 Vanowen St, Van Nuys, CA 91405
- Phone
- (818) 785-0300
- Enumerated
- Sep 6, 2006
- Record last updated
- Oct 1, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (818) 989-0297
- Medicare enrollment
- Enrolled (PECOS I20120319000330); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1990
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 15243 Vanowen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Denise A.d. Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G73973Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% more Medicare Part D claims than the average internal medicine physician in 2024
4,079 Medicare Part D claims for 210 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 167 claims were for opioids.
Most prescribed
- Atorvastatin Calcium243 claims
- Amlodipine Besylate168 claims
- Metformin Hcl164 claims
- Omeprazole95 claims
- Levothyroxine Sodium94 claims
- Losartan Potassium90 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: $629.01
30 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Jpb Medical Group IncVan Nuys, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Denise A.d. Phan among 17,696 internal medicine physician records in California
Denise A.d. Phan, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1990 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 internal medicine physician records list a practice address in Van Nuys
They are 40 of the 4,323 NPPES records with a practice address in Van Nuys, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Van Nuys → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eliza Ahn, M.D.Van Nuys, CA 914051356450498
- Kook Chang, M.D.Van Nuys, CA 914051356442354
- Mindy Cheng, M.D.Van Nuys, CA 914051689686669
- Jeffrey Chong, M.D.Van Nuys, CA 914051376644542
- Karl Kaplan, M.D.Van Nuys, CA 914051881698702
- David Lee, M.D.Van Nuys, CA 914051619065257
- Matthew Mischel, M.D.Van Nuys, CA 914051013996172
- Mitchell Nishimoto, M.D.Van Nuys, CA 914051003917287
Common questions
What is Denise A.d. Phan, M.D.'s NPI number?
Denise A.d. Phan, M.D.'s National Provider Identifier (NPI) is 1477656395, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denise A.d. Phan, M.D. located?
The NPPES record lists a practice address at 15243 Vanowen St, Van Nuys, CA, 91405. Phone: (818) 785-0300. Providers update this record themselves, so call before visiting.
How can I verify Denise A.d. Phan, M.D.'s license?
NPPES lists California license number G73973, 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 Denise A.d. Phan, M.D. prescribe under Medicare Part D?
In 2024, Denise A.d. Phan, M.D. had 4,079 Medicare Part D claims for 210 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.