Michael Dittmar

  • Duarte, CA
  • Hospitalist
NPI1801357439PAC ID1850713538
Medicare services, 2024
600
Medicare patients, 2024
137
Part D claims, 2024
93
Publications
19
MIPS score, 2024
93
Practice address
1500 Duarte Rd, Duarte, CA 91010
Practice phone
Call (800) 826-4673
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

City of Hope Comprehensive Cancer Center - Duarte

Duarte, California

See all 4 affiliations

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Michael Dittmar is a hospitalist in Duarte, California

Michael Dittmar practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California.

Michael Dittmar's NPI, 1801357439, was assigned on March 27, 2019. Michael Dittmar graduated from University of Colorado School of Medicine in 2019. Michael Dittmar holds California license A178438.

NPI and contact details
Medicare PAC ID
1850713538
NPI enumeration date
March 27, 2019
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(800) 826-4673
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
33
Medical school graduation
2019

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

Michael Dittmar practices at City of Hope Comprehensive Cancer Center - Duarte in Duarte, California

Michael Dittmar's primary practice is City of Hope Comprehensive Cancer Center - Duarte, at 1500 Duarte Rd, Duarte, CA 91010 in Los Angeles County. The practice phone is (800) 826-4673.

  • City of Hope Comprehensive Cancer Center - Duarte
    1500 Duarte Rd, Duarte, CA 91010 · Los Angeles CountyPhone(800) 826-4673

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

Michael Dittmar is affiliated with 3 sites of care and 1 medical group

Michael Dittmar's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. The medical group on file is City of Hope. Dmand AI also links Michael Dittmar to 1 more home health agency and 1 other site, each named with a free account.

See all 4 affiliations for Michael Dittmar

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 Michael Dittmar's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Michael Dittmar practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
City of Hope Comprehensive Cancer Center - DuarteAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Michael Dittmar is one of 3,186 hospitalists in California

Hospitalist is Michael Dittmar's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Michael Dittmar is board certified in internal medicine by the American Board of Internal Medicine. Michael Dittmar is licensed in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A178438 · 2022 to 2026 · taxonomy 208M00000X

Clinical focus

Dmand AI lists gastrointestinal infection among the conditions Michael Dittmar treats.

Hospitalists near Michael Dittmar

Counts of hospitalists 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

Michael Dittmar billed Medicare for 600 services in 2024

CMS data shows 600 Medicare services from Michael Dittmar across 2 procedure codes in 2024, for 137 Medicare patients. Medicare paid $60,309 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024600
Medicare patients137
Paid by Medicare$60,309
Procedure codes2

Michael Dittmar's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 8882024: 60032%

Michael Dittmar compared with the California median for hospitalists, 2024

  • Michael Dittmar
  • California median
Medicare services
600vs 43040% above
Medicare patients
137vs 20132% below
Part D claims
27vs 6961% below

Medians across 2,991 hospitalists in California with Dmand AI profiles that report each measure.

Michael Dittmar'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 Michael Dittmar

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

Michael Dittmar treated 137 Medicare patients in 2024, average age 71

CMS counts 137 Medicare patients who saw Michael Dittmar in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 70% have cancer. 46% are also on Medicaid. Their average risk score is 3.13, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Michael Dittmar's median patient age at 65, with 49% women.

Medicare patients, 2024137
Average age71
Average risk score3.13
Also on Medicaid46%

Michael Dittmar's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Michael Dittmar's Medicare patients by sex, 2024

  • Women6850%
  • Men6950%

Chronic conditions among Michael Dittmar's Medicare patients, 2024

  1. High blood pressure75%
  2. Cancer70%
  3. High cholesterol67%
  4. Arthritis43%
  5. Diabetes42%
  6. Chronic kidney disease41%
  7. Ischemic heart disease36%
  8. Anxiety34%

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

Michael Dittmar's patients across all payers

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

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women49%
  • Men50%

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

Michael Dittmar wrote 93 Medicare Part D claims in 2024

In 2024, Michael Dittmar wrote 93 Medicare Part D claims for 40 patients. 86% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $204 in total drug cost. In 2022, CMS named 12 claims across 1 drug.

Part D claims, 202493
Drugs named by CMS2
Total drug cost$204
Part D patients40

Michael Dittmar's Part D claims by kind of drug, 2024

  • Generic80 claims86%
  • Brand-name13 claims14%

Michael Dittmar's most prescribed drugs by claims, 2023

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 Michael Dittmar's Part D claims, 2024

  • Antibiotics30%28 of 93 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 122023: 27125%

Drugs named by CMS: 2 in 2023, 1 in 2022.

See all prescribing by Michael Dittmar

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

Michael Dittmar scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Michael Dittmar for performance year 2024, reported as part of a group. Michael Dittmar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Michael Dittmar's MIPS scores, performance year 2024

  • 93of 100Final score
  • 78.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 70of 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

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Michael Dittmar has 19 publications on record

Dmand AI links 19 papers to Michael Dittmar, published from 2011 to 2025. 2021 was the busiest year, with 3. The most frequent topics are Emergency Medical Services, Algorithms and Blood-Brain Barrier. Michael Dittmar has published most often in PLoS One. Michael Dittmar's most frequent co-authors are Jesus Antonio Araujo, MD, Brian R. Branchford, MD and Neil Goldenberg, MD.

Papers19
Years published2011 to 2025

Michael Dittmar's papers by year, 2014 to 2025

Topics Michael Dittmar writes about most

  • Emergency Medical Services
  • Algorithms
  • Blood-Brain Barrier
  • Emergency Medical Technicians
  • Mass Casualty Incidents
  • Triage
  • Apoptosis
  • bcl-2-Associated X Protein

Michael Dittmar's most frequent co-authors

Recent publications by Michael Dittmar

See all 19 publications and co-authors

See who Michael Dittmar researches with

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

How network discovery works

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

Michael Dittmar graduated from University of Colorado School of Medicine

Michael Dittmar graduated from University of Colorado School of Medicine in 2019.

  1. Medical schoolUniversity of Colorado School of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Michael Dittmar accepts plans from 11 insurance carriers

Michael Dittmar is in network with 11 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Alliant Health Plans
  • Blue Cross and Blue Shield of Kansas City
  • +3 more carriersWith a free account

Plan types Michael Dittmar accepts, by number of carriers

  1. Medicare7
  2. PPO7
  3. HMO5
  4. POS4
  5. EPO3

Source: Dmand AI Insurance Network Data

Sources for Michael Dittmar'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
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 Michael Dittmar

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Michael Dittmar's NPI number?

Michael Dittmar's NPI number is 1801357439. It was assigned on March 27, 2019, and it is active in the NPI Registry.

What does Michael Dittmar specialize in?

Michael Dittmar is a hospitalist in Duarte, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Michael Dittmar practice?

Michael Dittmar practices at 1500 Duarte Rd, Duarte, CA 91010. Michael Dittmar's primary practice is City of Hope Comprehensive Cancer Center - Duarte in Duarte, California. Dmand AI also links Michael Dittmar to 1 home health agency and 1 other site.

What is Michael Dittmar's office phone number?

The practice phone on file for Michael Dittmar is (800) 826-4673.

What is Michael Dittmar's medical license number?

Michael Dittmar holds California license A178438.

What medical group is Michael Dittmar part of?

Michael Dittmar is linked to City of Hope.

Does Michael Dittmar accept Medicare?

Yes. CMS data shows Michael Dittmar billed Medicare for 600 services in 2024, and Michael Dittmar accepts Medicare assignment.

What is Michael Dittmar's MIPS score?

Michael Dittmar's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Michael Dittmar see?

CMS counts 137 Medicare patients who saw Michael Dittmar in 2024, with an average age of 71.

Is Michael Dittmar board certified?

Yes. Michael Dittmar is board certified in internal medicine by the American Board of Internal Medicine.

Show 7 more questionsShow fewer questions

What services does Michael Dittmar bill to Medicare?

In 2024, Michael Dittmar's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99239).

Where did Michael Dittmar go to medical school?

Michael Dittmar graduated from University of Colorado School of Medicine in 2019.

What drugs does Michael Dittmar prescribe most?

In 2023 Medicare Part D data, Michael Dittmar's most prescribed drugs by claims were Levofloxacin and Sulfamethoxazole-Trimethoprim.

How long has Michael Dittmar been practicing?

Michael Dittmar graduated from medical school in 2019, 7 years ago.

Does Michael Dittmar do research?

Dmand AI links 19 publications to Michael Dittmar, published from 2011 to 2025.

Who does Michael Dittmar publish with?

Michael Dittmar's most frequent co-authors are Jesus Antonio Araujo, MD (1 shared paper), Brian R. Branchford, MD (1 shared paper) and Neil Goldenberg, MD (1 shared paper).

What insurance does Michael Dittmar accept?

Michael Dittmar is in network with 11 carriers, including Aetna, Elevance and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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