NPPES file of Aug 9, 2026

Biljana Kostic, M.D.

Internal Medicine Physician · Bermuda Dunes, CA

Biljana Kostic, M.D. is an internal medicine physician with a practice address in Bermuda Dunes, California, and NPI 1184703621, issued on Nov 3, 2006. Check the license (California AO52597, 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
1184703621
Name
Biljana Kostic
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
AO52597 CA
Self-reported in NPPES; status is on the state search
Practice location
41120 Washington St Ste 101, Bermuda Dunes, CA 92203
Phone
(760) 772-2823
Enumerated
Nov 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(760) 772-2819
Medicare enrollment
Enrolled (PECOS I20031105000538); accepts Medicare assignment
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 41120 Washington St Ste 101

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

  1. Stanley Herr, D.OInternal Medicine Physician1841373743

Verify Biljana Kostic in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license AO52597
    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

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4.3 times the Medicare Part D claims of the average internal medicine physician in 2024

13,732 Medicare Part D claims for 1,044 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 142 claims were for opioids.

  1. Biljana Kostic13,732
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium1,056 claims
  2. Levothyroxine Sodium941 claims
  3. Amlodipine Besylate611 claims
  4. Metformin Hcl538 claims
  5. Metoprolol Succinate393 claims
  6. Simvastatin392 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: $37.74

2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.

  1. Biljana Kostic$37.74
  2. Specialty average$1,303.06

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

  1. Herr-Kostic Medical Group IncBermuda Dunes, CA

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

4 internal medicine physician records list a practice address in Bermuda Dunes

They are 4 of the 73 NPPES records with a practice address in Bermuda Dunes, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Biljana Kostic, M.D.'s NPI number?

Biljana Kostic, M.D.'s National Provider Identifier (NPI) is 1184703621, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Biljana Kostic, M.D. located?

The NPPES record lists a practice address at 41120 Washington St Ste 101, Bermuda Dunes, CA, 92203. Phone: (760) 772-2823. Providers update this record themselves, so call before visiting.

How can I verify Biljana Kostic, M.D.'s license?

NPPES lists California license number AO52597, 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 Biljana Kostic, M.D. prescribe under Medicare Part D?

In 2024, Biljana Kostic, M.D. had 13,732 Medicare Part D claims for 1,044 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.