NPPES file of Aug 9, 2026

Tamara Sibalic-Mandic, MD

Internal Medicine Physician · Staten Island, NY

Tamara Sibalic-Mandic, MD is an internal medicine physician with a practice address in Staten Island, New York, and NPI 1285635565, issued on Aug 9, 2005. Check the license (New York 231279, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285635565
Name
Tamara Sibalic-Mandic
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
231279 NY
Self-reported in NPPES; status is on the state search
Practice location
88 Old Town RD, Staten Island, NY 10304
Phone
(732) 306-7899
Enumerated
Aug 9, 2005
Record last updated
Dec 11, 2024
Fax
(732) 654-8856
Medicaid ID
03405658 NY
Medicare enrollment
Enrolled (PECOS I20060106000878); 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 88 Old Town RD

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

  1. Mary BaroneRegistered Nurse1639539968
  2. Carolyn FaheyRegistered Nurse1477068955
  3. Cherie Frayne, NPAdult Health Nurse Practitioner1194792200
  4. Grace Anne GatbontonRegistered Nurse1477914026
  5. Donna HermannRegistered Nurse1750741385
  6. Jacqueline Kaffl, RNRegistered Nurse1639724545

Verify Tamara Sibalic-Mandic in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 231279
    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 New York 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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18% fewer Medicare Part D claims than the average internal medicine physician in 2024

2,618 Medicare Part D claims for 255 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Tamara Sibalic-Mandic2,618
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium120 claims
  2. Eliquis117 claims
  3. Furosemide98 claims
  4. Levothyroxine Sodium87 claims
  5. Amlodipine Besylate83 claims
  6. Losartan Potassium75 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Tamara Sibalic-Mandic among 12,067 internal medicine physician records in New York

Tamara Sibalic-Mandic, MD is one of 12,067 internal medicine physician records with a practice address in New York. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1995 · median 2002 among the 7,221 with a school on file
  • Record last updated2024 · 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

298 internal medicine physician records list a practice address in Staten Island

They are 298 of the 12,351 NPPES records with a practice address in Staten Island, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Deborah Aanonsen, D.O.Staten Island, NY 103041952395717
  2. Aldo Arpaia, MDStaten Island, NY 103041669538401
  3. George Ayyad, M.D.Staten Island, NY 103041083659452
  4. Natalya Chalik, MDStaten Island, NY 103041780745299
  5. Isandr Dumesh, MDStaten Island, NY 103041548308307
  6. Marina Goikhberg, MDStaten Island, NY 103041013071620
  7. Benjamin Kolloori, MDStaten Island, NY 103041235230251
  8. Luigi Parisi, M.D.Staten Island, NY 103041184733222

Common questions

What is Tamara Sibalic-Mandic, MD's NPI number?

Tamara Sibalic-Mandic, MD's National Provider Identifier (NPI) is 1285635565, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Tamara Sibalic-Mandic, MD located?

The NPPES record lists a practice address at 88 Old Town RD, Staten Island, NY, 10304. Phone: (732) 306-7899. Providers update this record themselves, so call before visiting.

How can I verify Tamara Sibalic-Mandic, MD's license?

NPPES lists New York license number 231279, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tamara Sibalic-Mandic, MD prescribe under Medicare Part D?

In 2024, Tamara Sibalic-Mandic, MD had 2,618 Medicare Part D claims for 255 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

What is Tamara Sibalic-Mandic, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.