Dr. Michael J. Dorsi, MD

  • Los Angeles, CA
  • Neurosurgeon
NPI1942355854PAC ID1850579657
Medicare services, 2024
455
Medicare patients, 2024
360
Part D claims, 2024
11
Publications
29
MIPS score, 2024
84
Practice address
200 Medical Plz, Los Angeles, CA 90024
Practice phone
Call (310) 794-9206
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Peter Morton UCLA Medical Building

Los Angeles, California

See all 8 affiliations

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Dr. Michael J. Dorsi is a neurosurgeon in Los Angeles, California

Dr. Dorsi practices at Peter Morton UCLA Medical Building in Los Angeles, California.

Dr. Dorsi's NPI, 1942355854, was assigned on January 24, 2007. Dr. Dorsi graduated from The Johns Hopkins University School of Medicine in 2004. Dr. Dorsi holds California license A116011.

NPI and contact details
Medicare PAC ID
1850579657
NPI enumeration date
January 24, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 794-9206
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
48
Medical school graduation
2004

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

Dr. Michael J. Dorsi practices at Peter Morton UCLA Medical Building in Los Angeles, California

Dr. Dorsi's primary practice is Peter Morton UCLA Medical Building, at 200 Medical Plz, Los Angeles, CA 90024 in Los Angeles County. The practice phone is (310) 794-9206.

  • Peter Morton UCLA Medical Building
    200 Medical Plz, Los Angeles, CA 90024 · Los Angeles CountyPhone(310) 794-9206

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

Dr. Michael J. Dorsi is affiliated with 6 sites of care and 2 medical groups

Dr. Dorsi's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dr. Dorsi is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Neurosurgery Associates. Dmand AI also links Dr. Dorsi to 3 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 8 affiliations for Dr. Dorsi

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. Michael J. Dorsi's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dorsi practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Peter Morton UCLA Medical BuildingAvailable with a free account
+5 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Michael J. Dorsi is one of 846 neurosurgeons in California

Neurological surgery is Dr. Dorsi's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Dorsi is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Dorsi's licenses on file in 2 states: California and Maryland.

Specialties and state licenses

  • Neurological surgery, CaliforniaPrimaryLicense A116011 · 2011 to 2027 · taxonomy 207T00000X
  • Maryland licenseLicense P19058

Clinical focus

Dmand AI lists back and neck pain treatment without fusion, craniotomy, lower back pain, neck pain and spine problems, spinal fusion and thoracic spine disorders among the conditions Dr. Dorsi treats.

Neurosurgeons near Dr. Dorsi

Counts of neurosurgeons 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. Michael J. Dorsi billed Medicare for 455 services in 2024

CMS data shows 455 Medicare services from Dr. Dorsi across 5 procedure codes in 2024, for 360 Medicare patients. Medicare paid $49,175 for them.

Medicare services, 2024455
Medicare patients360
Paid by Medicare$49,175
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 4592024: 4551%
Surgery
2023: 582024: 0100%

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

  • In an office39787%
  • In a facility5813%

Dr. Dorsi compared with the California median for neurosurgeons, 2024

  • Dr. Dorsi
  • California median
Medicare services
455vs 2162.1 times
Medicare patients
360vs 1542.3 times
Part D claims
11vs 2658% below

Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.

Dr. Dorsi'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. Dorsi

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dorsi and other neurosurgeons in California.

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

Dr. Michael J. Dorsi treated 360 Medicare patients in 2024, average age 73

CMS counts 360 Medicare patients who saw Dr. Dorsi in 2024. The largest group is 65 to 74, with 200 patients. 75% of them have arthritis, and 75% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Dorsi's median patient age at 64, with 51% women.

Medicare patients, 2024360
Average age73
Average risk score1.26
Also on Medicaid8%

Dr. Dorsi's Medicare patients by age, 2024

Dr. Dorsi's Medicare patients by sex, 2024

  • Women16546%
  • Men19554%

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

  1. Arthritis75%
  2. High blood pressure75%
  3. High cholesterol75%
  4. Ischemic heart disease38%
  5. Mood disorders32%
  6. Anxiety31%
  7. Diabetes31%
  8. Depression30%

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

Dr. Dorsi's patients across all payers

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

Patient panel by age, all payers

Median age 64

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. Michael J. Dorsi wrote 11 Medicare Part D claims in 2024

In 2024, Dr. Dorsi wrote 11 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $82 in total drug cost. In 2020, CMS named 34 claims across 2 drugs.

Part D claims, 202411
Drugs named by CMS1
Total drug cost$82

Dr. Dorsi's most prescribed drugs by claims, 2022

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, 2020 to 2022

  • 2020
  • 2022
Claims for drugs CMS names
2020: 342022: 1168%

Drugs named by CMS: 1 in 2022, 2 in 2020.

See all prescribing by Dr. Dorsi

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. Michael J. Dorsi scored 84 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Dorsi for performance year 2024, reported as part of a group. Dr. Dorsi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dorsi as offering telehealth. CMS counts 92 procedures of spinal fusion by Dr. Dorsi, more than 71% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Dorsi's MIPS scores, performance year 2024

  • 84of 100Final score
  • 68.7of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 63of 100Cost

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

Where Dr. Dorsi ranks in Medicare procedure volume

Spinal fusion
71st percentile92 procedures
Laminectomy or laminotomy (partial removal of spine bones)
67th percentile37 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

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

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Dr. Michael J. Dorsi has 29 publications on record

Dmand AI links 29 papers to Dr. Dorsi, published from 2007 to 2025. 2011 was the busiest year, with 4. The most frequent topics are Brachial Plexus, Pain Measurement and Rats, Sprague-Dawley. Dr. Dorsi has published most often in J Pain Res. Dr. Dorsi's most frequent co-authors are Timothy Ray Deer, MD, Steven M. Falowski, MD and Jonathan Michael Hagedorn, MD.

Papers29
Years published2007 to 2025

Dr. Dorsi's papers by year, 2009 to 2025

Topics Dr. Dorsi writes about most

  • Brachial Plexus
  • Pain Measurement
  • Rats, Sprague-Dawley
  • Hyperalgesia
  • Neuralgia
  • Neuroma
  • Pain Threshold
  • Peripheral Nervous System Neoplasms

Dr. Dorsi's most frequent co-authors

Recent publications by Dr. Dorsi

See all 29 publications and co-authors

See who Dr. Dorsi researches with

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

How network discovery works

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

Dr. Michael J. Dorsi received $770,687 in industry payments from 2016 to 2025

CMS Open Payments shows 2,332 general payments to Dr. Dorsi from 53 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 37% of the total. Nevro Corp. paid the most, $234,766. It also lists 1 research payment totaling $2,550 in 2016.

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

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

$770.7Kin total
  • Consulting fees$247,71437%
  • Royalties and licenses$100,64515%
  • Speaker and faculty fees$87,99913%
  • Education speaker fees$86,95013%
  • Other$152,90723%

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

Share is of all general payments to this clinician.

See all payments to Dr. Dorsi

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

Dr. Michael J. Dorsi has 2 awards and honors on record

Dmand AI lists 2 awards for Dr. Dorsi, most recently Minimally invasive spine surgeon of the year in 2019.

Awards and honors for Dr. Dorsi

  1. 2019
    • Minimally invasive spine surgeon of the year
  2. 2018
    • Spine surgeon of the year

Source: Dmand AI Professional Profile Data

Dr. Michael J. Dorsi graduated from The Johns Hopkins University School of Medicine

Dr. Dorsi graduated from The Johns Hopkins University School of Medicine in 2004. Dr. Dorsi is a member of CNS.

  1. Medical schoolThe Johns Hopkins University School of Medicine
  2. Board certified in neurological surgeryAmerican Board of Neurological Surgery

Source: Dmand AI Professional Profile Data

Dr. Michael J. Dorsi accepts plans from 15 insurance carriers

Dr. Dorsi is in network with 15 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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

Plan types Dr. Dorsi accepts, by number of carriers

  1. PPO10
  2. Medicare9
  3. HMO8
  4. EPO5
  5. POS5

Source: Dmand AI Insurance Network Data

Sources for Dr. Michael J. Dorsi'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)Doctors and Clinicians Utilization Data (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. Michael J. Dorsi

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. Michael J. Dorsi's NPI number?

Dr. Michael J. Dorsi's NPI number is 1942355854. It was assigned on January 24, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Michael J. Dorsi?

Dr. Michael J. Dorsi is a neurosurgeon in Los Angeles, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Michael J. Dorsi practice?

Dr. Dorsi practices at 200 Medical Plz, Los Angeles, CA 90024. Dr. Dorsi's primary practice is Peter Morton UCLA Medical Building in Los Angeles, California. Dmand AI also links Dr. Dorsi to 3 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Michael J. Dorsi's office phone number?

The practice phone on file for Dr. Dorsi is (310) 794-9206.

What is Dr. Michael J. Dorsi's medical license number?

Dr. Dorsi holds California license A116011, one of the licenses on file in 2 states.

Which states has Dr. Michael J. Dorsi been licensed in?

Dmand AI has state licenses on file for Dr. Dorsi in California (2011 to 2027) and Maryland.

Which hospitals is Dr. Michael J. Dorsi affiliated with?

Dr. Dorsi is affiliated with Ronald Reagan UCLA Medical Center. Dmand AI links Dr. Dorsi to 3 more hospitals.

What medical group is Dr. Michael J. Dorsi part of?

Dr. Dorsi is linked to UCLA Neurosurgery Associates. Dmand AI links Dr. Dorsi to 1 more medical group.

Does Dr. Michael J. Dorsi accept Medicare?

Yes. CMS data shows Dr. Dorsi billed Medicare for 455 services in 2024, and Dr. Dorsi accepts Medicare assignment.

Does Dr. Michael J. Dorsi offer telehealth?

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

Show 11 more questionsShow fewer questions

What is Dr. Michael J. Dorsi's MIPS score?

Dr. Dorsi's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.

How many Medicare patients does Dr. Michael J. Dorsi see?

CMS counts 360 Medicare patients who saw Dr. Dorsi in 2024, with an average age of 73.

Is Dr. Michael J. Dorsi board certified?

Yes. Dr. Dorsi is board certified in neurological surgery by the American Board of Neurological Surgery.

What services does Dr. Michael J. Dorsi bill to Medicare?

In 2024, Dr. Dorsi's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99205) and hospital inpatient care (99223).

Where did Dr. Michael J. Dorsi go to medical school?

Dr. Dorsi graduated from The Johns Hopkins University School of Medicine in 2004.

What drugs does Dr. Michael J. Dorsi prescribe most?

In 2022 Medicare Part D data, Dr. Dorsi's most prescribed drugs by claims were Methylprednisolone.

Has Dr. Michael J. Dorsi received payments from drug or device companies?

CMS Open Payments shows $770,687 in general payments to Dr. Dorsi from 53 companies from 2016 to 2025. The largest total came from Nevro Corp.

How long has Dr. Michael J. Dorsi been practicing?

Dr. Dorsi graduated from medical school in 2004, 22 years ago.

Does Dr. Michael J. Dorsi do research?

Dmand AI links 29 publications to Dr. Dorsi, published from 2007 to 2025.

Who does Dr. Michael J. Dorsi publish with?

Dr. Dorsi's most frequent co-authors are Timothy Ray Deer, MD (4 shared papers), Steven M. Falowski, MD (4 shared papers) and Jonathan Michael Hagedorn, MD (4 shared papers).

What insurance does Dr. Michael J. Dorsi accept?

Dr. Dorsi is in network with 15 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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