Dr. Bill Kaloostian, MD
- Part D claims, 2024
- 307
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 4867 Sunset Blvd, Los Angeles, CA 90027
- Practice phone
- Call (323) 783-4011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Kaloostian's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Bill Kaloostian is an internist in Los Angeles, California
Dr. Kaloostian practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Kaloostian's NPI, 1184842197, was assigned on April 23, 2007. Dr. Kaloostian holds California license A40261.
- NPI
- 1184842197NPI Registry (opens in a new tab)
- NPI enumeration date
- April 23, 2007
- NPI status
- Active
- Practice phone
- (323) 783-4011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Bill Kaloostian practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California
Dr. Kaloostian's primary practice is Kaiser Permanente Los Angeles Medical Center, at 4867 Sunset Blvd, Los Angeles, CA 90027 in Los Angeles County. The practice phone is (323) 783-4011.
- Kaiser Permanente Los Angeles Medical Center4867 Sunset Blvd, Los Angeles, CA 90027 · Los Angeles CountyPhone(323) 783-4011
Source: Dmand AI Affiliation Data
Dr. Bill Kaloostian is affiliated with 1 site of care and 1 medical group
Dr. Kaloostian's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Bill Kaloostian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kaloostian practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Los Angeles Medical Center | 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 Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Bill Kaloostian is one of 16,751 internists in California
Internal medicine is Dr. Kaloostian's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kaloostian is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Kaloostian
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. Bill Kaloostian's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Kaloostian's median patient age at 57, with 54% women.
Dr. Kaloostian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Dr. Bill Kaloostian wrote 307 Medicare Part D claims in 2024
In 2024, Dr. Kaloostian wrote 307 Medicare Part D claims for 157 patients. 77% of them were for generic drugs. CMS names the drug for 136 of them, across 6 drugs with 11 or more claims each, at $2,105 in total drug cost. In 2023, CMS named 462 claims across 18 drugs.
Dr. Kaloostian's Part D claims by kind of drug, 2024
- Generic237 claims77%
- Brand-name36 claims12%
- Other34 claims11%
Dr. Kaloostian'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. Kaloostian's Part D claims, 2024
- Antibiotics28%87 of 307 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: 4622024: 13671%
Drugs named by CMS: 6 in 2024, 18 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for Dr. Bill Kaloostian'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Bill Kaloostian
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. Bill Kaloostian's NPI number?
Dr. Bill Kaloostian's NPI number is 1184842197. It was assigned on April 23, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Bill Kaloostian?
Dr. Bill Kaloostian is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bill Kaloostian practice?
Dr. Kaloostian practices at 4867 Sunset Blvd, Los Angeles, CA 90027. Dr. Kaloostian's primary practice is Kaiser Permanente Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
What is Dr. Bill Kaloostian's office phone number?
The practice phone on file for Dr. Kaloostian is (323) 783-4011.
What is Dr. Bill Kaloostian's medical license number?
Dr. Kaloostian holds California license A40261.
Which hospitals is Dr. Bill Kaloostian affiliated with?
Dr. Kaloostian practices at Kaiser Permanente Los Angeles Medical Center in Los Angeles, California.
What medical group is Dr. Bill Kaloostian part of?
Dr. Kaloostian is linked to Southern California Permanente Medical Group.
What drugs does Dr. Bill Kaloostian prescribe most?
In 2024 Medicare Part D data, Dr. Kaloostian's most prescribed drugs by claims were Albuterol Sulfate Hfa, Salsalate and Azithromycin.
How long has Dr. Bill Kaloostian been practicing?
Dr. Kaloostian graduated from medical school in 1980, 46 years ago.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card