Dr. Merry Lynn Tetef, MD

  • Santa Monica, CA
  • Hematologist and oncologist
NPI1194784785
Medicare services, 2024
11,044
Medicare patients, 2024
541
Part D claims, 2024
270
Publications
27
MIPS score, 2024
88
Practice address
1250 16th St, Santa Monica, CA 90404
Practice phone
Call (949) 472-0244
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Saddleback Outpatient Surgery Center Ltd

Santa Monica, California

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Dr. Merry Lynn Tetef is a hematologist and oncologist in Santa Monica, California

Dr. Tetef practices at Saddleback Outpatient Surgery Center Ltd in Santa Monica, California.

Dr. Tetef's NPI, 1194784785, was assigned on March 21, 2006. Dr. Tetef graduated from Harvard Medical School in 1987. Dr. Tetef holds California license G64196.

NPI and contact details
NPI enumeration date
March 21, 2006
NPI status
Active
Practice phone
(949) 472-0244
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
65
Medical school graduation
1987

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

Dr. Merry Lynn Tetef practices at Saddleback Outpatient Surgery Center Ltd in Santa Monica, California

Dr. Tetef's primary practice is Saddleback Outpatient Surgery Center Ltd, at 1250 16th St, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (949) 472-0244.

  • Saddleback Outpatient Surgery Center Ltd
    1250 16th St, Santa Monica, CA 90404 · Los Angeles CountyPhone(949) 472-0244

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

Dr. Merry Lynn Tetef is affiliated with 2 sites of care and 1 medical group

Dr. Tetef's primary practice is Saddleback Outpatient Surgery Center Ltd in Santa Monica, California. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Tetef to 1 more group practice or clinic, named with a free account.

Saddleback Outpatient Surgery Center LtdSanta Monica, CaliforniaPrimary
UCLA Medical GroupPrimary care group, Los Angeles, CA1 group practice or clinicName with a free account
See all 3 affiliations for Dr. Tetef

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

Dmand AI tracks the EHR system at Dr. Merry Lynn Tetef's practice

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

EHR by site
SiteEHR vendor and product
Saddleback Outpatient Surgery Center LtdAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Merry Lynn Tetef is one of 1,502 hematologists and oncologists in California

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

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense G64196 · 1988 to 2026 · taxonomy 207RH0003X

Clinical focus

Dmand AI lists breast cancer, chronic leukemia, colorectal cancer, lung cancer, neutropenia, prostate cancer and purpura and thrombocytopenia among the conditions Dr. Tetef treats.

Hematologists and oncologists near Dr. Tetef

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. Merry Lynn Tetef billed Medicare for 11,044 services in 2024

CMS data shows 11,044 Medicare services from Dr. Tetef across 21 procedure codes in 2024, for 541 Medicare patients. Medicare paid $251,314 for them. Every service was in an office.

Medicare services, 202411,044
Medicare patients541
Paid by Medicare$251,314
Procedure codes21

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

  • 2023
  • 2024
Drugs given in the office
2023: 14,4732024: 8,88239%
Tests and treatments
2023: 1,6862024: 71258%
Office and hospital visits
2023: 1,2852024: 67048%
Other services
2023: 3,2542024: 42487%
Lab and pathology
2023: 4372024: 23446%
Surgery
2023: 2212024: 12245%

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

  • Dr. Tetef
  • California median
Medicare services
11,044vs 93211.8 times
Medicare patients
541vs 2252.4 times
Part D claims
200vs 39449% below

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

Dr. Tetef'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. Tetef

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

Dr. Merry Lynn Tetef treated 541 Medicare patients in 2024, average age 74

CMS counts 541 Medicare patients who saw Dr. Tetef in 2024. The largest group is 65 to 74, with 266 patients. 75% of them have cancer, and 75% have high cholesterol. 3% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Tetef's median patient age at 67, with 97% women.

Medicare patients, 2024541
Average age74
Average risk score1.34
Also on Medicaid3%

Dr. Tetef's Medicare patients by age, 2024

Dr. Tetef's Medicare patients by sex, 2024

  • Women51194%
  • Men306%

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

  1. Cancer75%
  2. High cholesterol75%
  3. High blood pressure64%
  4. Arthritis48%
  5. Osteoporosis30%
  6. Anxiety22%
  7. Mood disorders21%
  8. Depression19%

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

Dr. Tetef's patients across all payers

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

Patient panel by age, all payers

Median age 67

Patient panel by sex, all payers

  • Women97%
  • Men3%

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

Dr. Merry Lynn Tetef wrote 270 Medicare Part D claims in 2024

In 2024, Dr. Tetef wrote 270 Medicare Part D claims for 117 patients. 77% of them were for generic drugs. CMS names the drug for 200 of them, across 5 drugs with 11 or more claims each, at $487,712 in total drug cost. In 2023, CMS named 229 claims across 6 drugs.

Part D claims, 2024270
Drugs named by CMS5
Total drug cost$487,712
Part D patients117

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

  • Generic209 claims77%
  • Brand-name61 claims23%

Dr. Tetef'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2292024: 20013%

Drugs named by CMS: 5 in 2024, 6 in 2023.

See all prescribing by Dr. Tetef

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. Merry Lynn Tetef scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Tetef for performance year 2024, reported as part of a group.

Dr. Tetef's MIPS scores, performance year 2024

  • 88of 100Final score
  • 79.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

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

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Merry Lynn Tetef has 27 publications on record

Dmand AI links 27 papers to Dr. Tetef, published from 2003 to 2024. 2004 was the busiest year, with 2. The most frequent topics are Antineoplastic Combined Chemotherapy Protocols, Breast Neoplasms and Infusions, Intravenous. Dr. Tetef has published most often in Cancer Chemother Pharmacol. Dr. Tetef's most frequent co-authors are Lucille Leong, MD, Kim A. Margolin, MD and Robert Morgan, MD.

Papers27
Years published2003 to 2024

Dr. Tetef's papers by year, 2003 to 2024

Topics Dr. Tetef writes about most

  • Antineoplastic Combined Chemotherapy Protocols
  • Breast Neoplasms
  • Infusions, Intravenous
  • Antineoplastic Agents
  • Cisplatin
  • Granulocyte Colony-Stimulating Factor
  • Etoposide
  • Carboplatin

Dr. Tetef's most frequent co-authors

Recent publications by Dr. Tetef

See all 27 publications and co-authors

See who Dr. Tetef researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tetef 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. Merry Lynn Tetef received $27 in industry payments from 2016 to 2021

CMS Open Payments shows 2 general payments to Dr. Tetef from 2 drug and device companies from 2016 to 2021. Education make up the largest share, 100% of the total. Pfizer Inc. paid the most, $15.

General payments to Dr. Tetef by program year, 2016 to 2021

Companies that paid Dr. Tetef the most, 2016 to 2021

Share is of all general payments to this clinician.

See all payments to Dr. Tetef

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

Dr. Merry Lynn Tetef has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Tetef, most recently Top Doctors:LA Area in 2013.

Awards and honors for Dr. Tetef

  1. 2013
    • Top Doctors:LA Area
    • Top Doctors:San Diego Area
  2. 2012
    • Top Doctors:Southern California
  3. Undated
    • Checkbook Top Doc
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Merry Lynn Tetef graduated from Harvard Medical School

Dr. Tetef graduated from Harvard Medical School in 1987. Dr. Tetef is a member of ASCO.

  1. Medical schoolHarvard Medical School
  2. Board certified in medical oncologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Merry Lynn Tetef accepts plans from 5 insurance carriers

Dr. Tetef is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans

Plan types Dr. Tetef accepts, by number of carriers

  1. Medicare5
  2. PPO5
  3. HMO2
  4. POS2
  5. EPO1

Source: Dmand AI Insurance Network Data

Sources for Dr. Merry Lynn Tetef'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 percentilesClinician 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)
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. Merry Lynn Tetef

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. Merry Lynn Tetef's NPI number?

Dr. Merry Lynn Tetef's NPI number is 1194784785. It was assigned on March 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Merry Lynn Tetef?

Dr. Merry Lynn Tetef 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. Merry Lynn Tetef practice?

Dr. Tetef practices at 1250 16th St, Santa Monica, CA 90404. Dr. Tetef's primary practice is Saddleback Outpatient Surgery Center Ltd in Santa Monica, California. Dmand AI also links Dr. Tetef to 1 group practice or clinic.

What is Dr. Merry Lynn Tetef's office phone number?

The practice phone on file for Dr. Tetef is (949) 472-0244.

What is Dr. Merry Lynn Tetef's medical license number?

Dr. Tetef holds California license G64196.

What medical group is Dr. Merry Lynn Tetef part of?

Dr. Tetef is linked to UCLA Medical Group.

Does Dr. Merry Lynn Tetef accept Medicare?

Yes. CMS data shows Dr. Tetef billed Medicare for 11,044 services in 2024.

What is Dr. Merry Lynn Tetef's MIPS score?

Dr. Tetef's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

How many Medicare patients does Dr. Merry Lynn Tetef see?

CMS counts 541 Medicare patients who saw Dr. Tetef in 2024, with an average age of 74.

Is Dr. Merry Lynn Tetef board certified?

Yes. Dr. Tetef is board certified in medical oncology by the American Board of Internal Medicine.

Show 8 more questionsShow fewer questions

What services does Dr. Merry Lynn Tetef bill to Medicare?

In 2024, Dr. Tetef's most billed Medicare services were injected or infused drug (J0897), injected or infused drug (J9394) and injected or infused drug (J2469).

Where did Dr. Merry Lynn Tetef go to medical school?

Dr. Tetef graduated from Harvard Medical School in 1987.

What drugs does Dr. Merry Lynn Tetef prescribe most?

In 2024 Medicare Part D data, Dr. Tetef's most prescribed drugs by claims were Anastrozole, Ibrance and Tamoxifen Citrate.

Has Dr. Merry Lynn Tetef received payments from drug or device companies?

CMS Open Payments shows $27 in general payments to Dr. Tetef from 2 companies from 2016 to 2021. The largest total came from Pfizer Inc.

How long has Dr. Merry Lynn Tetef been practicing?

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

Does Dr. Merry Lynn Tetef do research?

Dmand AI links 27 publications to Dr. Tetef, published from 2003 to 2024.

Who does Dr. Merry Lynn Tetef publish with?

Dr. Tetef's most frequent co-authors are Lucille Leong, MD (22 shared papers), Kim A. Margolin, MD (22 shared papers) and Robert Morgan, MD (21 shared papers).

What insurance does Dr. Merry Lynn Tetef accept?

Dr. Tetef is in network with 5 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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