Dr. Igor Sister, MD

  • San Diego, CA
  • Internist
NPI1518149467PAC ID4981787975
Medicare services, 2024
2,898
Medicare patients, 2024
944
Part D claims, 2024
707
Hospital affiliations
4
Industry payments
$117
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 36 affiliations

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Dr. Igor Sister is an internist in San Diego, California

Dr. Sister practices at UCSD Hillcrest Medical Center in San Diego, California.

Dr. Sister's NPI, 1518149467, was assigned on December 3, 2007. Dr. Sister graduated from Other in 1987. Dr. Sister's Minnesota license number on file is 74296.

NPI and contact details
Medicare PAC ID
4981787975
NPI enumeration date
December 3, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(619) 543-6222
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
65
Medical school graduation
1987

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

Dr. Igor Sister practices at UCSD Hillcrest Medical Center in San Diego, California

Dr. Sister's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.

  • UCSD Hillcrest Medical Center
    200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222

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

Dr. Igor Sister is affiliated with 8 sites of care and 28 medical groups

Dr. Sister's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Sister is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Sister to 3 more hospitals, 27 medical groups, 2 group practices and clinics and 1 hospice, each named with a free account.

See all 36 affiliations for Dr. Sister

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

Dmand AI tracks the EHR system at Dr. Igor Sister's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sister practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSD Hillcrest Medical CenterAvailable with a free account
+7 more sites and 27 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Igor Sister is one of 16,751 internists in California

Internal medicine is Dr. Sister's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sister is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Sister's licenses on file in 15 states: Minnesota, South Carolina, Florida, Georgia, Iowa, Illinois, New Mexico, Ohio, Oklahoma, California, North Carolina, New Hampshire, Kansas, Indiana and Alabama.

Specialties and state licenses

  • Internal medicine, MinnesotaPrimaryLicense 74296 · 2023 to 2025 · taxonomy 207R00000X
  • South Carolina licenseLicense 32872 · 2010 to 2027
  • Florida license2024 to 2026
  • Georgia license2017 to 2026
  • Iowa license2023 to 2026
  • Illinois license2023 to 2026
  • New Mexico license2023 to 2026
  • Ohio license2022 to 2026
  • Oklahoma licenseLicense 40933 · 2023 to 2026
  • Hospitalist, CaliforniaLicense C164561 · 2019 to 2025 · taxonomy 208M00000X
  • North Carolina license2022 to 2025
  • New Hampshire license2023 to 2025
  • Kansas license2023 to 2024
  • Indiana license2017 to 2019
  • Alabama license2017

Clinical focus

Dmand AI lists acute diabetes, acute respiratory failure, anemia, cardiac arrhythmia, cellulitis, chest trauma, circulation problems and congestive heart failure among the conditions Dr. Sister treats.

Internists near Dr. Sister

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. Igor Sister billed Medicare for 2,898 services in 2024

CMS data shows 2,898 Medicare services from Dr. Sister across 6 procedure codes in 2024, for 944 Medicare patients. Medicare paid $268,561 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 20242,898
Medicare patients944
Paid by Medicare$268,561
Procedure codes6

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

  • 2023
  • 2024
Office and hospital visits
2023: 1,2832024: 2,898126%

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

  • Dr. Sister
  • California median
Medicare services
2,898vs 3618.0 times
Medicare patients
944vs 1516.3 times
Part D claims
367vs 42113% below

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

Dr. Sister'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. Sister

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

Dr. Igor Sister treated 944 Medicare patients in 2024, average age 76

CMS counts 944 Medicare patients who saw Dr. Sister in 2024. The largest group is 75 to 84, with 294 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 2.63, 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. Sister's median patient age at 70, with 49% women.

Medicare patients, 2024944
Average age76
Average risk score2.63
Also on Medicaid50%

Dr. Sister's Medicare patients by age, 2024

Dr. Sister's Medicare patients by sex, 2024

  • Women51655%
  • Men42845%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Mood disorders53%
  4. Arthritis52%
  5. Depression48%
  6. Diabetes47%
  7. Chronic kidney disease46%
  8. Heart failure46%

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

Dr. Sister's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women49%
  • Men50%

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

Dr. Igor Sister wrote 707 Medicare Part D claims in 2024

In 2024, Dr. Sister wrote 707 Medicare Part D claims for 285 patients. 86% of them were for generic drugs. CMS names the drug for 367 of them, across 22 drugs with 11 or more claims each, at $29,747 in total drug cost. In 2023, CMS named 330 claims across 20 drugs.

Part D claims, 2024707
Drugs named by CMS22
Total drug cost$29,747
Part D patients285

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

  • Generic610 claims86%
  • Brand-name and other97 claims14%

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

  • Opioids5%36 of 707 claims
  • Antibiotics22%154 of 707 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: 3302024: 36711%

Drugs named by CMS: 22 in 2024, 20 in 2023.

See all prescribing by Dr. Sister

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. Igor Sister takes part in Medicare

Dr. Sister 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. Igor Sister received $117 in industry payments in 2016

CMS Open Payments shows 7 general payments to Dr. Sister from 6 drug and device companies in 2016. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $36.

Companies that paid Dr. Sister the most, 2016 to 2016

Share is of all general payments to this clinician.

See all payments to Dr. Sister

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

Dr. Igor Sister graduated from Other

Dr. Sister graduated from Other in 1987.

  1. Medical schoolOther
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in geriatric medicineNational Board of Physicians and Surgeons
  4. Board certified in internal medicineNational Board of Physicians and Surgeons

Source: Dmand AI Professional Profile Data

Dr. Igor Sister accepts plans from 21 insurance carriers

Dr. Sister is in network with 21 carriers, including Aetna, HCSC and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

  • Aetna
  • HCSC
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Blue Cross and Blue Shield of North Carolina
  • Cigna
  • Elevance
  • Alliant Health Plans
  • +13 more carriersWith a free account

Plan types Dr. Sister accepts, by number of carriers

  1. PPO13
  2. Medicare10
  3. HMO9
  4. EPO5
  5. POS4
  6. Medicaid3

Source: Dmand AI Insurance Network Data

Sources for Dr. Igor Sister'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)
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. Igor Sister

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. Igor Sister's NPI number?

Dr. Igor Sister's NPI number is 1518149467. It was assigned on December 3, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Igor Sister?

Dr. Igor Sister is an internist in San Diego, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Igor Sister practice?

Dr. Sister practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Sister's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Sister to 3 hospitals, 27 medical groups, 2 group practices and clinics and 1 hospice.

What is Dr. Igor Sister's office phone number?

The practice phone on file for Dr. Sister is (619) 543-6222.

What is Dr. Igor Sister's medical license number?

Dr. Sister's Minnesota license number on file is 74296, one of the licenses on file in 15 states.

Which states has Dr. Igor Sister been licensed in?

Dmand AI has state licenses on file for Dr. Sister in Minnesota (2023 to 2025), South Carolina (2010 to 2027), Florida (2024 to 2026), Georgia (2017 to 2026), Iowa (2023 to 2026), Illinois (2023 to 2026), New Mexico (2023 to 2026), Ohio (2022 to 2026), Oklahoma (2023 to 2026), California (2019 to 2025), North Carolina (2022 to 2025), New Hampshire (2023 to 2025), Kansas (2023 to 2024), Indiana (2017 to 2019) and Alabama (2017).

Which hospitals is Dr. Igor Sister affiliated with?

Dr. Sister is affiliated with Hillcrest Medical Center. Dmand AI links Dr. Sister to 3 more hospitals.

What medical group is Dr. Igor Sister part of?

Dr. Sister is linked to UC San Diego Health. Dmand AI links Dr. Sister to 27 more medical groups.

Does Dr. Igor Sister accept Medicare?

Yes. CMS data shows Dr. Sister billed Medicare for 2,898 services in 2024, and Dr. Sister accepts Medicare assignment.

How many Medicare patients does Dr. Igor Sister see?

CMS counts 944 Medicare patients who saw Dr. Sister in 2024, with an average age of 76.

Show 7 more questionsShow fewer questions

Is Dr. Igor Sister board certified?

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

What services does Dr. Igor Sister bill to Medicare?

In 2024, Dr. Sister's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99239) and hospital inpatient care (99232).

Where did Dr. Igor Sister go to medical school?

Dr. Sister graduated from Other in 1987.

What drugs does Dr. Igor Sister prescribe most?

In 2024 Medicare Part D data, Dr. Sister's most prescribed drugs by claims were Pantoprazole Sodium, Atorvastatin Calcium and Azithromycin.

Has Dr. Igor Sister received payments from drug or device companies?

CMS Open Payments shows $117 in general payments to Dr. Sister from 6 companies from 2016 to 2016. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Igor Sister been practicing?

Dr. Sister graduated from medical school in 1987, 39 years ago.

What insurance does Dr. Igor Sister accept?

Dr. Sister is in network with 21 carriers, including Aetna, HCSC and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 13. Check the plan with the practice before a visit.

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