Dr. Daniel Simpson, MD

  • San Diego, CA
  • Radiation oncologist
NPI1689974883PAC ID3072826163
Medicare services, 2024
661
Medicare patients, 2024
167
Part D claims, 2024
13
Publications
44
MIPS score, 2024
100
Practice address
200 W Arbor Dr, San Diego, CA 92103
Practice phone
Call (619) 543-6222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSD Hillcrest Medical Center

San Diego, California

See all 8 affiliations

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Dr. Daniel Simpson is a radiation oncologist in San Diego, California

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

Dr. Simpson's NPI, 1689974883, was assigned on October 22, 2010. Dr. Simpson graduated from UC San Diego School of Medicine in 2010. Dr. Simpson's California license number on file is A118377.

NPI and contact details
Medicare PAC ID
3072826163
NPI enumeration date
October 22, 2010
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(619) 543-6222
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
42
Medical school graduation
2010

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

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

Dr. Simpson'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. Daniel Simpson is affiliated with 5 sites of care and 3 medical groups

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

See all 8 affiliations for Dr. Simpson

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

Dmand AI tracks the EHR system at Dr. Daniel Simpson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 4 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
+4 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Daniel Simpson is one of 685 radiation oncologists in California

Radiation oncology is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Simpson is board certified in diagnostic & medical nuclear physics by the American Board of Radiology. Dr. Simpson has a license on file in California.

Specialties and state licenses

  • Radiation oncology, CaliforniaPrimaryLicense A118377 · 2011 to 2025 · taxonomy 2085R0001X

Clinical focus

Dmand AI lists anal cancer radiation, bladder cancer radiation, bone cancer radiation, brain cancer radiation, breast cancer radiation, cancer radiation-upper GI, cervical cancer radiation and colorectal cancer radiation among the conditions Dr. Simpson treats.

Radiation oncologists near Dr. Simpson

Counts of radiation 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. Daniel Simpson billed Medicare for 661 services in 2024

CMS data shows 661 Medicare services from Dr. Simpson across 13 procedure codes in 2024, for 167 Medicare patients. Medicare paid $59,054 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024661
Medicare patients167
Paid by Medicare$59,054
Procedure codes13

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

  • 2023
  • 2024
Imaging
2023: 3372024: 61081%
Office and hospital visits
2023: 02024: 51

Dr. Simpson compared with the California median for radiation oncologists, 2024

  • Dr. Simpson
  • California median
Medicare services
661vs 1,44454% below
Medicare patients
167vs 164Close to median
Part D claims
15vs 3253% below

Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.

Dr. Simpson'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. Simpson

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simpson and other radiation oncologists in California.

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

Dr. Daniel Simpson treated 167 Medicare patients in 2024, average age 73

CMS counts 167 Medicare patients who saw Dr. Simpson in 2024. The largest group is 65 to 74, with 83 patients. 73% of them have cancer, and 72% have high blood pressure. 23% are also on Medicaid. Their average risk score is 1.94, 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. Simpson's median patient age at 66, with 51% women.

Medicare patients, 2024167
Average age73
Average risk score1.94
Also on Medicaid23%

Dr. Simpson's Medicare patients by age, 2024

Dr. Simpson's Medicare patients by sex, 2024

  • Women6640%
  • Men10160%

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

  1. Cancer73%
  2. High blood pressure72%
  3. High cholesterol65%
  4. Arthritis38%
  5. Mood disorders31%
  6. Ischemic heart disease30%
  7. Anxiety27%
  8. Chronic kidney disease27%

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

Dr. Simpson's patients across all payers

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

Patient panel by age, all payers

Median age 66

Patient panel by sex, all payers

  • Women51%
  • Men48%

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

Dr. Daniel Simpson wrote 13 Medicare Part D claims in 2024

In 2024, Dr. Simpson wrote 13 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $595 in total drug cost.

Part D claims, 202413
Drugs named by CMS1
Total drug cost$595

Dr. Simpson's most prescribed drugs by claims, 2018

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

See all prescribing by Dr. Simpson

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. Daniel Simpson scored 100 out of 100 in Medicare's MIPS program for 2024

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Simpson's MIPS scores, performance year 2024

  • 100of 100Final score
  • 89.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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. Daniel Simpson has 44 publications on record

Dmand AI links 44 papers to Dr. Simpson, published from 2009 to 2022. 2018 was the busiest year, with 4. The most frequent topics are Radiosurgery, Radiotherapy Dosage and Prostatic Neoplasms. Dr. Simpson has published most often in Int J Radiat Oncol Biol Phys. Dr. Simpson's most frequent co-authors are James Don Murphy, MD, Brent Shane Rose, MD and Arno James Mundt, MD.

Papers44
Years published2009 to 2022

Dr. Simpson's papers by year, 2011 to 2022

Topics Dr. Simpson writes about most

  • Radiosurgery
  • Radiotherapy Dosage
  • Prostatic Neoplasms
  • Radiotherapy, Intensity-Modulated
  • Radiotherapy Planning, Computer-Assisted
  • Brain Neoplasms
  • Androgen Antagonists
  • Chemoradiotherapy

Dr. Simpson's most frequent co-authors

Recent publications by Dr. Simpson

See all 44 publications and co-authors

See who Dr. Simpson researches with

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

How network discovery works

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

Dr. Daniel Simpson received $191 in industry payments from 2018 to 2024

CMS Open Payments shows 4 general payments to Dr. Simpson from 4 drug and device companies from 2018 to 2024. Food and beverage make up the largest share, 100% of the total. Jazz Pharmaceuticals Inc. paid the most, $136.

General payments to Dr. Simpson by program year, 2018 to 2024

Companies that paid Dr. Simpson the most, 2018 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Simpson

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

Dr. Daniel Simpson has 5 awards and honors on record

Dmand AI lists 5 awards for Dr. Simpson, most recently Roentgen Resident Research Award in 2015.

Awards and honors for Dr. Simpson

  1. 2015
    • Roentgen Resident Research Award
  2. 2012
    • Best of ASTRO Spanish Session
  3. 2005
    • Biological Sciences Outstanding Achievement Award
    • Phi Beta Kappa Society
  4. 2002
    • Provost's Honors

Source: Dmand AI Professional Profile Data

Dr. Daniel Simpson graduated from UC San Diego School of Medicine

Dr. Simpson graduated from UC San Diego School of Medicine in 2010.

  1. Medical schoolUC San Diego School of Medicine
  2. Board certified in diagnostic & medical nuclear physicsAmerican Board of Radiology
  3. Board certified in radiation oncologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Daniel Simpson accepts plans from 15 insurance carriers

Dr. Simpson is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • United Healthcare
  • HCSC
  • Blue Cross Blue Shield of Massachusetts
  • Molina
  • Regence Health Plans
  • +7 more carriersWith a free account

Plan types Dr. Simpson accepts, by number of carriers

  1. Medicare9
  2. PPO9
  3. HMO7
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Daniel Simpson'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 DataDmand AI Org Hierarchy 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)
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. Daniel Simpson

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. Daniel Simpson's NPI number?

Dr. Daniel Simpson's NPI number is 1689974883. It was assigned on October 22, 2010, and it is active in the NPI Registry.

What kind of doctor is Dr. Daniel Simpson?

Dr. Daniel Simpson is a radiation oncologist in San Diego, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Daniel Simpson practice?

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

What is Dr. Daniel Simpson's office phone number?

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

What is Dr. Daniel Simpson's medical license number?

Dr. Simpson's California license number on file is A118377.

Which hospitals is Dr. Daniel Simpson affiliated with?

Dr. Simpson is affiliated with Hillcrest Medical Center.

What medical group is Dr. Daniel Simpson part of?

Dr. Simpson is linked to UC San Diego Health. Dmand AI links Dr. Simpson to 2 more medical groups.

Does Dr. Daniel Simpson accept Medicare?

Yes. CMS data shows Dr. Simpson billed Medicare for 661 services in 2024, and Dr. Simpson accepts Medicare assignment.

Does Dr. Daniel Simpson offer telehealth?

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

What is Dr. Daniel Simpson's MIPS score?

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

Show 10 more questionsShow fewer questions

How many Medicare patients does Dr. Daniel Simpson see?

CMS counts 167 Medicare patients who saw Dr. Simpson in 2024, with an average age of 73.

Is Dr. Daniel Simpson board certified?

Yes. Dr. Simpson is board certified in diagnostic & medical nuclear physics by the American Board of Radiology.

What services does Dr. Daniel Simpson bill to Medicare?

In 2024, Dr. Simpson's most billed Medicare services were radiation oncology (77300), radiation oncology (77014) and radiation oncology (77334).

Where did Dr. Daniel Simpson go to medical school?

Dr. Simpson graduated from UC San Diego School of Medicine in 2010.

What drugs does Dr. Daniel Simpson prescribe most?

In 2018 Medicare Part D data, Dr. Simpson's most prescribed drugs by claims were Dexamethasone.

Has Dr. Daniel Simpson received payments from drug or device companies?

CMS Open Payments shows $191 in general payments to Dr. Simpson from 4 companies from 2018 to 2024. The largest total came from Jazz Pharmaceuticals Inc.

How long has Dr. Daniel Simpson been practicing?

Dr. Simpson graduated from medical school in 2010, 16 years ago.

Does Dr. Daniel Simpson do research?

Dmand AI links 44 publications to Dr. Simpson, published from 2009 to 2022.

Who does Dr. Daniel Simpson publish with?

Dr. Simpson's most frequent co-authors are James Don Murphy, MD (17 shared papers), Brent Shane Rose, MD (13 shared papers) and Arno James Mundt, MD (9 shared papers).

What insurance does Dr. Daniel Simpson accept?

Dr. Simpson is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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