Dr. Timothy S. Kristedja, MD

  • Santa Monica, CA
  • Hematologist and oncologist
NPI1881897494PAC ID0840447942
Medicare services, 2024
37,785
Medicare patients, 2024
607
Part D claims, 2024
898
Publications
5
MIPS score, 2024
90
Practice address
2001 Santa Monica Blvd, Santa Monica, CA 90404
Practice phone
Call (310) 829-5550
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Santa Monica Surgicenter

Santa Monica, California

See all 6 affiliations

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Dr. Timothy S. Kristedja is a hematologist and oncologist in Santa Monica, California

Dr. Kristedja practices at Santa Monica Surgicenter in Santa Monica, California.

Dr. Kristedja's NPI, 1881897494, was assigned on June 9, 2007. Dr. Kristedja graduated from University of Dublin Trinity College in 2006. Dr. Kristedja holds California license A108522.

NPI and contact details
Medicare PAC ID
0840447942
NPI enumeration date
June 9, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 829-5550
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
46
Medical school graduation
2006

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

Dr. Timothy S. Kristedja practices at Santa Monica Surgicenter in Santa Monica, California

Dr. Kristedja's primary practice is Santa Monica Surgicenter, at 2001 Santa Monica Blvd, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 829-5550.

  • Santa Monica Surgicenter
    2001 Santa Monica Blvd, Santa Monica, CA 90404 · Los Angeles CountyPhone(310) 829-5550

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

Dr. Timothy S. Kristedja is affiliated with 4 sites of care and 2 medical groups

Dr. Kristedja's primary practice is Santa Monica Surgicenter in Santa Monica, California. Dr. Kristedja is also affiliated with Providence Saint John's Health Center. The medical group on file is Saint John's Physician Partners. Dmand AI also links Dr. Kristedja to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Kristedja

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

Dmand AI tracks the EHR system at Dr. Timothy S. Kristedja's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kristedja practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Santa Monica SurgicenterAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Timothy S. Kristedja is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. Kristedja's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Kristedja is board certified in hematology by the American Board of Internal Medicine. Dr. Kristedja is licensed in California.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense A108522 · 2009 to 2027 · taxonomy 207RH0003X

Clinical focus

Dmand AI lists arterial blot clot /embolism, breast cancer, chronic anemia, chronic embolism thrombosis, colorectal cancer, deep vein thrombosis (DVT), lung cancer and lymphoma among the conditions Dr. Kristedja treats.

Hematologists and oncologists near Dr. Kristedja

Counts of hematologists and oncologists 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. Timothy S. Kristedja billed Medicare for 37,785 services in 2024

CMS data shows 37,785 Medicare services from Dr. Kristedja across 31 procedure codes in 2024, for 607 Medicare patients. Medicare paid $277,369 for them.

Medicare services, 202437,785
Medicare patients607
Paid by Medicare$277,369
Procedure codes31

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

  • 2023
  • 2024
Other services
2023: 23,4602024: 24,4974%
Drugs given in the office
2023: 1,8702024: 9,164390%
Office and hospital visits
2023: 1,2562024: 1,59527%
Lab and pathology
2023: 9582024: 1,20626%
Tests and treatments
2023: 6202024: 81031%
Surgery
2023: 4372024: 51317%

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

  • In an office37,15798%
  • In a facility6282%

Dr. Kristedja compared with the California median for hematologists and oncologists, 2024

  • Dr. Kristedja
  • California median
Medicare services
37,785vs 93240.5 times
Medicare patients
607vs 2252.7 times
Part D claims
625vs 39459% above

Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.

Dr. Kristedja'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. Kristedja

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

Dr. Timothy S. Kristedja treated 607 Medicare patients in 2024, average age 78

CMS counts 607 Medicare patients who saw Dr. Kristedja in 2024. The largest group is 75 to 84, with 235 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.99, 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. Kristedja's median patient age at 70, with 61% women.

Medicare patients, 2024607
Average age78
Average risk score1.99
Also on Medicaid10%

Dr. Kristedja's Medicare patients by age, 2024

Dr. Kristedja's Medicare patients by sex, 2024

  • Women32654%
  • Men28146%

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

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis56%
  4. Ischemic heart disease46%
  5. Cancer39%
  6. Osteoporosis30%
  7. Chronic kidney disease29%
  8. Anxiety27%

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

Dr. Kristedja'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

  • Women61%
  • Men38%

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

Dr. Timothy S. Kristedja wrote 898 Medicare Part D claims in 2024

In 2024, Dr. Kristedja wrote 898 Medicare Part D claims for 150 patients. 66% of them were for generic drugs. CMS names the drug for 625 of them, across 25 drugs with 11 or more claims each, at $1,787,994 in total drug cost. In 2023, CMS named 483 claims across 20 drugs.

Part D claims, 2024898
Drugs named by CMS25
Total drug cost$1.8M
Part D patients150

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

  • Generic594 claims66%
  • Brand-name304 claims34%

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

  • Opioids3%24 of 898 claims
  • Antibiotics5%43 of 898 claims
  • Antipsychotics, patients 65 and over1%11 of 898 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: 4832024: 62529%

Drugs named by CMS: 25 in 2024, 20 in 2023.

See all prescribing by Dr. Kristedja

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

Dr. Timothy S. Kristedja scored 90 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Kristedja for performance year 2024, reported as part of a group. Dr. Kristedja accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kristedja as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Kristedja's MIPS scores, performance year 2024

  • 90of 100Final score
  • 96.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 72of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. Timothy S. Kristedja has 5 publications on record

Dmand AI links 5 papers to Dr. Kristedja. The most frequent topics are Melanoma, Tamoxifen and Antibodies, Monoclonal, Humanized. Dr. Kristedja's most frequent co-authors are Steven J. O'Day, MD, Luke Philip Dreisbach, MD and Mohammed Mahmoud Milhem, MBBS.

Papers5

Topics Dr. Kristedja writes about most

  • Melanoma
  • Tamoxifen
  • Antibodies, Monoclonal, Humanized
  • Antineoplastic Agents, Hormonal
  • Antineoplastic Combined Chemotherapy Protocols
  • Interleukin-2

Dr. Kristedja's most frequent co-authors

Recent publications by Dr. Kristedja

See all 5 publications and co-authors

See who Dr. Kristedja researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kristedja works with, so you can find a warm path to the right hematologists and oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Timothy S. Kristedja received $1,843 in industry payments from 2016 to 2025

CMS Open Payments shows 47 general payments to Dr. Kristedja from 15 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 85% of the total. Janssen Pharmaceuticals, Inc paid the most, $523.

General payments to Dr. Kristedja by program year, 2016 to 2025

General payments to Dr. Kristedja by kind, 2016 to 2025

$1.8Kin total
  • Food and beverage$1,57085%
  • Education$27315%

Companies that paid Dr. Kristedja the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Kristedja

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

Dr. Timothy S. Kristedja graduated from University of Dublin Trinity College

Dr. Kristedja graduated from University of Dublin Trinity College in 2006.

  1. Medical schoolUniversity of Dublin Trinity College
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in medical oncologyAmerican Board of Internal Medicine
  4. Board certified in hematologyNational Board of Physicians and Surgeons
  5. Board certified in internal medicineNational Board of Physicians and Surgeons
  6. Board certified in medical oncologyNational Board of Physicians and Surgeons

Source: Dmand AI Professional Profile Data

Dr. Timothy S. Kristedja accepts plans from 13 insurance carriers

Dr. Kristedja is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +5 more carriersWith a free account

Plan types Dr. Kristedja accepts, by number of carriers

  1. PPO9
  2. Medicare7
  3. HMO6
  4. EPO4
  5. POS3

Source: Dmand AI Insurance Network Data

Sources for Dr. Timothy S. Kristedja'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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. Timothy S. Kristedja

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. Timothy S. Kristedja's NPI number?

Dr. Timothy S. Kristedja's NPI number is 1881897494. It was assigned on June 9, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Timothy S. Kristedja?

Dr. Timothy S. Kristedja is a hematologist and oncologist in Santa Monica, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Timothy S. Kristedja practice?

Dr. Kristedja practices at 2001 Santa Monica Blvd, Santa Monica, CA 90404. Dr. Kristedja's primary practice is Santa Monica Surgicenter in Santa Monica, California. Dmand AI also links Dr. Kristedja to 1 community health center, 1 group practice or clinic and 1 medical group.

What is Dr. Timothy S. Kristedja's office phone number?

The practice phone on file for Dr. Kristedja is (310) 829-5550.

What is Dr. Timothy S. Kristedja's medical license number?

Dr. Kristedja holds California license A108522.

Which hospitals is Dr. Timothy S. Kristedja affiliated with?

Dr. Kristedja is affiliated with Providence Saint John's Health Center.

What medical group is Dr. Timothy S. Kristedja part of?

Dr. Kristedja is linked to Saint John's Physician Partners. Dmand AI links Dr. Kristedja to 1 more medical group.

Does Dr. Timothy S. Kristedja accept Medicare?

Yes. CMS data shows Dr. Kristedja billed Medicare for 37,785 services in 2024, and Dr. Kristedja accepts Medicare assignment.

Does Dr. Timothy S. Kristedja offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Kristedja as offering telehealth services.

What is Dr. Timothy S. Kristedja's MIPS score?

Dr. Kristedja's MIPS final score for performance year 2024 is 90 out of 100, reported as part of a group.

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Timothy S. Kristedja see?

CMS counts 607 Medicare patients who saw Dr. Kristedja in 2024, with an average age of 78.

Is Dr. Timothy S. Kristedja board certified?

Yes. Dr. Kristedja is board certified in hematology by the American Board of Internal Medicine.

What services does Dr. Timothy S. Kristedja bill to Medicare?

In 2024, Dr. Kristedja's most billed Medicare services were medicare temporary code (Q0138), injected or infused drug (J0185) and injected or infused drug (J0897).

Where did Dr. Timothy S. Kristedja go to medical school?

Dr. Kristedja graduated from University of Dublin Trinity College in 2006.

What drugs does Dr. Timothy S. Kristedja prescribe most?

In 2024 Medicare Part D data, Dr. Kristedja's most prescribed drugs by claims were Eliquis, Hydroxyurea and Prednisone.

Has Dr. Timothy S. Kristedja received payments from drug or device companies?

CMS Open Payments shows $1,843 in general payments to Dr. Kristedja from 15 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.

How long has Dr. Timothy S. Kristedja been practicing?

Dr. Kristedja graduated from medical school in 2006, 20 years ago.

Does Dr. Timothy S. Kristedja do research?

Dmand AI links 5 publications to Dr. Kristedja.

Who does Dr. Timothy S. Kristedja publish with?

Dr. Kristedja's most frequent co-authors are Steven J. O'Day, MD (2 shared papers), Luke Philip Dreisbach, MD (1 shared paper) and Mohammed Mahmoud Milhem, MBBS (1 shared paper).

What insurance does Dr. Timothy S. Kristedja accept?

Dr. Kristedja is in network with 13 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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