Dr. David Phak, MD
- Medicare services, 2024
- 192
- Medicare patients, 2024
- 91
- Part D claims, 2024
- 183
- Hospital affiliations
- 1
- Industry payments
- $47
- Practice address
- 8700 Beverly Blvd, Los Angeles, CA 90048
- Practice phone
- Call (310) 423-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Phak's professional email, personal email and mobile number
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Dr. David Phak is an internist in West Hollywood, California
Dr. Phak practices at Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System.
Dr. Phak's NPI, 1033798202, was assigned on April 6, 2021. Dr. Phak holds California license A181814.
- NPI
- 1033798202NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8729524467
- NPI enumeration date
- April 6, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (310) 423-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Phak practices at Cedars-Sinai Medical Center in Los Angeles, California
Dr. Phak's primary practice is Cedars-Sinai Medical Center, at 8700 Beverly Blvd, Los Angeles, CA 90048 in Los Angeles County. The practice phone is (310) 423-5000.
- Cedars-Sinai Medical Center8700 Beverly Blvd, Los Angeles, CA 90048 · Los Angeles CountyPhone(310) 423-5000
Source: Dmand AI Affiliation Data
Dr. David Phak is affiliated with 1 site of care and 2 medical groups
Dr. Phak's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. The medical group on file is Cedars-Sinai Medical Center. Dmand AI also links Dr. Phak to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Phak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phak practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cedars-Sinai Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Cedars-Sinai Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Phak is one of 16,751 internists in California
Internal medicine is Dr. Phak's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Phak is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Phak
Counts of internists 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. David Phak billed Medicare for 192 services in 2024
CMS data shows 192 Medicare services from Dr. Phak across 4 procedure codes in 2024, for 91 Medicare patients. Medicare paid $18,535 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Phak compared with the California median for internists, 2024
- Dr. Phak
- California median
- Medicare services
- 192vs 36147% below
- Medicare patients
- 91vs 15140% below
- Part D claims
- 12vs 42197% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Phak's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Phak?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Phak and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Phak treated 91 Medicare patients in 2024, average age 74
CMS counts 91 Medicare patients who saw Dr. Phak in 2024. The largest group is 65 to 74, with 29 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 51% are also on Medicaid. Their average risk score is 2.88, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Phak's median patient age at 56, with 49% women.
Dr. Phak's Medicare patients by age, 2024
Dr. Phak's Medicare patients by sex, 2024
- Women4752%
- Men4448%
Chronic conditions among Dr. Phak's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Ischemic heart disease55%
- Diabetes47%
- Heart failure47%
- Chronic kidney disease45%
- Mood disorders45%
Share of Medicare patients with each condition. A patient can have several.
Dr. Phak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Phak wrote 183 Medicare Part D claims in 2024
In 2024, Dr. Phak wrote 183 Medicare Part D claims for 41 patients. 80% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $57 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Phak's Part D claims by kind of drug, 2024
- Generic147 claims80%
- Brand-name36 claims20%
Dr. Phak's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Phak's Part D claims, 2024
- Antibiotics7%12 of 183 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 122024: 12No change
Drugs named by CMS: 1 in 2024, 1 in 2023.
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
How Dr. David Phak takes part in Medicare
Dr. Phak accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David Phak received $47 in industry payments from 2022 to 2023
CMS Open Payments shows 2 general payments to Dr. Phak from 2 drug and device companies from 2022 to 2023. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $30.
General payments to Dr. Phak by program year, 2022 to 2023
Companies that paid Dr. Phak the most, 2022 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. David Phak'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. David Phak
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. David Phak's NPI number?
Dr. David Phak's NPI number is 1033798202. It was assigned on April 6, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. David Phak?
Dr. David Phak is an internist in West Hollywood, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Phak practice?
Dr. Phak practices at 8700 Beverly Blvd, Los Angeles, CA 90048. Dr. Phak's primary practice is Cedars-Sinai Medical Center in Los Angeles, California, part of Cedars-Sinai Health System. Dmand AI also links Dr. Phak to 1 medical group.
What is Dr. David Phak's office phone number?
The practice phone on file for Dr. Phak is (310) 423-5000.
What is Dr. David Phak's medical license number?
Dr. Phak holds California license A181814.
Which hospitals is Dr. David Phak affiliated with?
Dr. Phak practices at Cedars-Sinai Medical Center in Los Angeles, California.
What medical group is Dr. David Phak part of?
Dr. Phak is linked to Cedars-Sinai Medical Center. Dmand AI links Dr. Phak to 1 more medical group.
Does Dr. David Phak accept Medicare?
Yes. CMS data shows Dr. Phak billed Medicare for 192 services in 2024, and Dr. Phak accepts Medicare assignment.
How many Medicare patients does Dr. David Phak see?
CMS counts 91 Medicare patients who saw Dr. Phak in 2024, with an average age of 74.
What services does Dr. David Phak bill to Medicare?
In 2024, Dr. Phak's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).
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What drugs does Dr. David Phak prescribe most?
In 2024 Medicare Part D data, Dr. Phak's most prescribed drugs by claims were Losartan Potassium.
Has Dr. David Phak received payments from drug or device companies?
CMS Open Payments shows $47 in general payments to Dr. Phak from 2 companies from 2022 to 2023. The largest total came from Gilead Sciences, Inc.
How long has Dr. David Phak been practicing?
Dr. Phak graduated from medical school in 2021, 5 years ago.
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