NPPES file of Aug 9, 2026

Carolyn L. Kaloostian, MD

Geriatric Medicine (Family Medicine) Physician · Los Angeles, CA

Carolyn L. Kaloostian, MD is a geriatric medicine (family medicine) physician with a practice address in Los Angeles, California, and NPI 1023300019, issued on May 9, 2011. Check the license (California A114172, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023300019
Name
Carolyn L. Kaloostian
Credential
MD
Primary taxonomy
Geriatric Medicine (Family Medicine) Physician 207QG0300X
License numbers
A114172 CA
A1314172 CA
Self-reported in NPPES; status is on the state search
Practice location
1520 San Pablo St, Los Angeles, CA 90033
Phone
(323) 442-5900
Enumerated
May 9, 2011
Record last updated
Nov 27, 2023
Medicare enrollment
Enrolled (PECOS I20141104000429); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1520 San Pablo St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Frank Acosta, PHDPsychologist1750313490
  2. Gbemisola Adenuga, M.D.Nephrology Physician1952464661
  3. Aimee Aguillon, OTR/L, CHTOccupational Therapist1972677318
  4. Haig Aharonian, M.D.Internal Medicine Physician1205107653
  5. Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
  6. Mohammad Akmal, M.D.Nephrology Physician1356378087

Verify Carolyn L. Kaloostian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A114172
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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67% fewer Medicare Part D claims than the average geriatric medicine (family medicine) physician in 2024

1,737 Medicare Part D claims for 73 beneficiaries, against an average of 5,222 among the 1,271 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 28 claims were for opioids.

  1. Carolyn Kaloostian1,737
  2. Specialty average5,222

Most prescribed

  1. Amlodipine Besylate99 claims
  2. Atorvastatin Calcium94 claims
  3. Rosuvastatin Calcium71 claims
  4. Levothyroxine Sodium49 claims
  5. Pantoprazole Sodium48 claims
  6. Tamsulosin Hcl48 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.

Bills Medicare through one group practice

  1. Usc Care Medical Group IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carolyn L. Kaloostian among 243 geriatric medicine (family medicine) physician records in California

Carolyn L. Kaloostian, MD is one of 243 geriatric medicine (family medicine) physician records with a practice address in California. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 73% of them.

  • NPI issued2011 · 73% of these records are older, 22% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2008 · median 2004 among the 111 with a school on file
  • Record last updated2023 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Family Medicine) Physician providers in California

There are 243 geriatric medicine (family medicine) physician records in California.

The 8 geriatric medicine (family medicine) physician records with the nearest ZIP codes

  1. Silvia Collazo, DOLos Angeles, CA 900331083771224
  2. Seyed Khalili, M.D.Los Angeles, CA 900331942526405
  3. Laura Mosqueda, MDLos Angeles, CA 900331629158886
  4. Caroline Park, MD PHDLos Angeles, CA 900331396270989
  5. David Chang, MDLos Angeles, CA 900271801968136
  6. Andrea CiseLos Angeles, CA 900271700297710
  7. Peter Khang, MDLos Angeles, CA 900271609947670
  8. Eric KimLos Angeles, CA 900271275096489

Common questions

What is Carolyn L. Kaloostian, MD's NPI number?

Carolyn L. Kaloostian, MD's National Provider Identifier (NPI) is 1023300019, issued on May 9, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Carolyn L. Kaloostian, MD located?

The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5900. Providers update this record themselves, so call before visiting.

How can I verify Carolyn L. Kaloostian, MD's license?

NPPES lists California license number A114172, 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 Carolyn L. Kaloostian, MD prescribe under Medicare Part D?

In 2024, Carolyn L. Kaloostian, MD had 1,737 Medicare Part D claims for 73 beneficiaries; the average among geriatric medicine (family medicine) physician prescribers was 5,222. 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.