Dr. Tamara Barsik, MD

  • Upland, CA
  • Internist
NPI1356320378PAC ID2769372762
Medicare services, 2024
4,241
Medicare patients, 2024
927
Part D claims, 2024
18,907
Hospital affiliations
7
Industry payments
$4,536
Practice address
1221 E Arrow Hwy, Upland, CA 91786
Practice phone
Call (972) 533-9893
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Tamara Barsik,M.D.,PA.

Upland, California

See all 30 affiliations

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Dr. Tamara Barsik is an internist in Upland, California

Dr. Barsik practices at Tamara Barsik,M.D.,PA. in Upland, California.

Dr. Barsik's NPI, 1356320378, was assigned on January 10, 2006. Dr. Barsik graduated from Damascus University Faculty of Medicine in 1990. Dr. Barsik's Texas license number on file is K5065.

NPI and contact details
Medicare PAC ID
2769372762
NPI enumeration date
January 10, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(972) 533-9893
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
62
Medical school graduation
1990

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Tamara Barsik practices at Tamara Barsik,M.D.,PA. in Upland, California

Dr. Barsik's primary practice is Tamara Barsik,M.D.,PA., at 1221 E Arrow Hwy, Upland, CA 91786 in San Bernardino County. The practice phone is (972) 533-9893.

  • Tamara Barsik,M.D.,PA.
    1221 E Arrow Hwy, Upland, CA 91786 · San Bernardino CountyPhone(972) 533-9893

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Tamara Barsik is affiliated with 18 sites of care and 12 medical groups

Dr. Barsik's primary practice is Tamara Barsik,M.D.,PA. in Upland, California. Dr. Barsik is also affiliated with Medical City McKinney Hospital. The medical group on file is Legacy Healthcare Services. Dmand AI also links Dr. Barsik to 6 more hospitals, 11 medical groups, 5 skilled nursing facilities, 4 group practices and clinics and 1 physician office, each named with a free account.

See all 30 affiliations for Dr. Barsik

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Tamara Barsik's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barsik practices, 17 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Tamara Barsik,M.D.,PA.Available with a free account
+17 more sites and 11 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Tamara Barsik is one of 16,751 internists in California

Internal medicine is Dr. Barsik's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Barsik is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Barsik's licenses on file in 5 states: Texas, California, Florida, Arkansas and New Mexico.

Specialties and state licenses

  • Internal medicine, TexasPrimaryLicense K5065 · 1998 to 2025 · taxonomy 207R00000X
  • California license1998 to 2026
  • Florida license1997 to 2006
  • Arkansas license1995 to 2001
  • New Mexico license1997

Clinical focus

Dmand AI lists acid reflux, acute respiratory failure, acute sinusitis, acute skin infection, anemia, aneurysm, anxiety and arthritis among the conditions Dr. Barsik treats.

Internists near Dr. Barsik

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. Tamara Barsik billed Medicare for 4,241 services in 2024

CMS data shows 4,241 Medicare services from Dr. Barsik across 16 procedure codes in 2024, for 927 Medicare patients. Medicare paid $318,668 for them.

Medicare services, 20244,241
Medicare patients927
Paid by Medicare$318,668
Procedure codes16

Dr. Barsik's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 4,3152024: 4,2063%
Other services
2023: 282024: 3525%

Where Dr. Barsik's Medicare services took place, 2024

  • In an office42210%
  • In a facility3,81990%

Dr. Barsik compared with the California median for internists, 2024

  • Dr. Barsik
  • California median
Medicare services
4,241vs 36111.7 times
Medicare patients
927vs 1516.1 times
Part D claims
18,101vs 42143.0 times

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. Barsik'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.

See all procedures by Dr. Barsik

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Barsik and other internists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Tamara Barsik treated 927 Medicare patients in 2024, average age 74

CMS counts 927 Medicare patients who saw Dr. Barsik in 2024. The largest group is 75 to 84, with 328 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.82, 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. Barsik's median patient age at 73, with 62% women.

Medicare patients, 2024927
Average age74
Average risk score1.82
Also on Medicaid29%

Dr. Barsik's Medicare patients by age, 2024

Dr. Barsik's Medicare patients by sex, 2024

  • Women54459%
  • Men38341%

Chronic conditions among Dr. Barsik's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis57%
  4. Mood disorders57%
  5. Anxiety54%
  6. Depression52%
  7. Diabetes40%
  8. Ischemic heart disease39%

Share of Medicare patients with each condition. A patient can have several.

Dr. Barsik's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women62%
  • Men37%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Tamara Barsik wrote 18,907 Medicare Part D claims in 2024

In 2024, Dr. Barsik wrote 18,907 Medicare Part D claims for 859 patients. 86% of them were for generic drugs. CMS names the drug for 18,101 of them, across 221 drugs with 11 or more claims each, at $961,609 in total drug cost. In 2023, CMS named 16,681 claims across 211 drugs.

Part D claims, 202418,907
Drugs named by CMS221
Total drug cost$961,609
Part D patients859

Dr. Barsik's Part D claims by kind of drug, 2024

  • Generic16,250 claims86%
  • Brand-name2,623 claims14%
  • Other34 claims0%

Dr. Barsik'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. Barsik's Part D claims, 2024

  • Opioids1%211 of 18,907 claims
  • Antibiotics3%496 of 18,907 claims
  • Antipsychotics, patients 65 and over2%419 of 18,907 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: 16,6812024: 18,1019%

Drugs named by CMS: 221 in 2024, 211 in 2023.

See all prescribing by Dr. Barsik

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. Tamara Barsik takes part in Medicare

Dr. Barsik 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. Tamara Barsik received $4,536 in industry payments from 2017 to 2025

CMS Open Payments shows 273 general payments to Dr. Barsik from 46 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $700.

General payments to Dr. Barsik by program year, 2017 to 2025

Companies that paid Dr. Barsik the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Barsik

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Tamara Barsik has 1 award and honors on record

Dmand AI lists 1 award for Dr. Barsik, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Barsik

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Tamara Barsik graduated from Damascus University Faculty of Medicine

Dr. Barsik graduated from Damascus University Faculty of Medicine in 1990.

  1. Medical schoolDamascus University Faculty of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Tamara Barsik accepts plans from 24 insurance carriers

Dr. Barsik is in network with 24 carriers, including Elevance, Aetna and Highmark. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.

Plan types Dr. Barsik accepts, by number of carriers

  1. PPO15
  2. HMO14
  3. Medicare12
  4. POS7
  5. EPO5
  6. Medicaid2

Source: Dmand AI Insurance Network Data

Sources for Dr. Tamara Barsik's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Tamara Barsik

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. Tamara Barsik's NPI number?

Dr. Tamara Barsik's NPI number is 1356320378. It was assigned on January 10, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Tamara Barsik?

Dr. Tamara Barsik is an internist in Upland, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Tamara Barsik practice?

Dr. Barsik practices at 1221 E Arrow Hwy, Upland, CA 91786. Dr. Barsik's primary practice is Tamara Barsik,M.D.,PA. in Upland, California. Dmand AI also links Dr. Barsik to 6 hospitals, 11 medical groups, 5 skilled nursing facilities, 4 group practices and clinics and 1 physician office.

What is Dr. Tamara Barsik's office phone number?

The practice phone on file for Dr. Barsik is (972) 533-9893.

What is Dr. Tamara Barsik's medical license number?

Dr. Barsik's Texas license number on file is K5065, one of the licenses on file in 5 states.

Which states has Dr. Tamara Barsik been licensed in?

Dmand AI has state licenses on file for Dr. Barsik in Texas (1998 to 2025), California (1998 to 2026), Florida (1997 to 2006), Arkansas (1995 to 2001) and New Mexico (1997).

Which hospitals is Dr. Tamara Barsik affiliated with?

Dr. Barsik is affiliated with Medical City McKinney Hospital. Dmand AI links Dr. Barsik to 6 more hospitals.

What medical group is Dr. Tamara Barsik part of?

Dr. Barsik is linked to Legacy Healthcare Services. Dmand AI links Dr. Barsik to 11 more medical groups.

Does Dr. Tamara Barsik accept Medicare?

Yes. CMS data shows Dr. Barsik billed Medicare for 4,241 services in 2024, and Dr. Barsik accepts Medicare assignment.

How many Medicare patients does Dr. Tamara Barsik see?

CMS counts 927 Medicare patients who saw Dr. Barsik in 2024, with an average age of 74.

Show 7 more questionsShow fewer questions

Is Dr. Tamara Barsik board certified?

Yes. Dr. Barsik is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Tamara Barsik bill to Medicare?

In 2024, Dr. Barsik's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and nursing facility care (99308).

Where did Dr. Tamara Barsik go to medical school?

Dr. Barsik graduated from Damascus University Faculty of Medicine in 1990.

What drugs does Dr. Tamara Barsik prescribe most?

In 2024 Medicare Part D data, Dr. Barsik's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Gabapentin.

Has Dr. Tamara Barsik received payments from drug or device companies?

CMS Open Payments shows $4,536 in general payments to Dr. Barsik from 46 companies from 2017 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. Tamara Barsik been practicing?

Dr. Barsik graduated from medical school in 1990, 36 years ago.

What insurance does Dr. Tamara Barsik accept?

Dr. Barsik is in network with 24 carriers, including Elevance, Aetna and Highmark. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.

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