Dr. Giancarlo Pasquale Dimassa, MD

  • Mission Hills, CA
  • Emergency medicine physician
NPI1255370797PAC ID3072599125
Medicare services, 2024
1,310
Medicare patients, 2024
538
Part D claims, 2024
470
Publications
3
MIPS score, 2024
97
Practice address
11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345
Practice phone
Call (818) 898-4630
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Sub-Acute Care Center

Skilled Nursing Facility - Hospital-Based · Mission Hills, California

See all 5 affiliations

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Dr. Giancarlo Pasquale Dimassa is an emergency medicine physician in Mission Hills, California

Dr. Dimassa practices at Sub-Acute Care Center in Mission Hills, California.

Dr. Dimassa's NPI, 1255370797, was assigned on June 6, 2006. Dr. Dimassa graduated from David Geffen School of Medicine at UCLA in 2001. Dr. Dimassa holds California license A81063.

NPI and contact details
Medicare PAC ID
3072599125
NPI enumeration date
June 6, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(818) 898-4630
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
51
Medical school graduation
2001

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

Dr. Giancarlo Pasquale Dimassa practices at 2 locations in Mission Hills, California

Dr. Dimassa's primary practice is Sub-Acute Care Center, at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (818) 898-4630. Dr. Dimassa also practices at Providence Holy Cross Medical Center, 15031 W Rinaldi St, Mission Hills, CA 91345.

  • Sub-Acute Care CenterPrimary
    11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 898-4630
  • Providence Holy Cross Medical Center
    15031 W Rinaldi St, Mission Hills, CA 91345 · Los Angeles CountyPhone(818) 365-8051

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

Dr. Giancarlo Pasquale Dimassa is affiliated with 2 sites of care and 3 medical groups

Dr. Dimassa's primary practice is Sub-Acute Care Center in Mission Hills, California. Dr. Dimassa is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Vituity. Dmand AI also links Dr. Dimassa to 2 more medical groups, each named with a free account.

See all 5 affiliations for Dr. Dimassa

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Giancarlo Pasquale Dimassa's practice

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

EHR by site
SiteEHR vendor and product
Sub-Acute Care CenterAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Giancarlo Pasquale Dimassa is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Dimassa's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Dimassa is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Dimassa's licenses on file in 15 states: California, Arizona, Colorado, Montana, New Jersey, Nevada, New York, Florida, Idaho, Illinois, Kansas, Mississippi, North Dakota, Ohio and Tennessee.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A81063 · 2002 to 2026 · taxonomy 207P00000X
  • Arizona license2021 to 2027
  • Colorado license2023 to 2027
  • Montana license2023 to 2027
  • New Jersey license2020 to 2027
  • Nevada license2021 to 2027
  • New York license2022 to 2027
  • Florida license2022 to 2026
  • Idaho license2020 to 2026
  • Illinois license2020 to 2026
  • Kansas license2021 to 2026
  • Mississippi license2022 to 2026
  • North Dakota license2023 to 2026
  • Ohio license2022 to 2026
  • Tennessee license2023 to 2026

Emergency medicine physicians near Dr. Dimassa

Counts of emergency medicine physicians 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. Giancarlo Pasquale Dimassa billed Medicare for 1,310 services in 2024

CMS data shows 1,310 Medicare services from Dr. Dimassa across 28 procedure codes in 2024, for 538 Medicare patients. Medicare paid $80,457 for them.

Medicare services, 20241,310
Medicare patients538
Paid by Medicare$80,457
Procedure codes28

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

  • 2023
  • 2024
Office and hospital visits
2023: 5812024: 5584%
Lab and pathology
2023: 2572024: 33430%
Tests and treatments
2023: 3182024: 24922%
Imaging
2023: 522024: 10194%
Surgery
2023: 492024: 3920%
Drugs given in the office
2023: 282024: 294%
Other services
2023: 212024: 0100%

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

  • In an office91770%
  • In a facility39330%

Dr. Dimassa compared with the California median for emergency medicine physicians, 2024

  • Dr. Dimassa
  • California median
Medicare services
1,310vs 2654.9 times
Medicare patients
538vs 2432.2 times
Part D claims
256vs 624.1 times

Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.

Dr. Dimassa'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. Dimassa

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

Dr. Giancarlo Pasquale Dimassa treated 538 Medicare patients in 2024, average age 74

CMS counts 538 Medicare patients who saw Dr. Dimassa in 2024. The largest group is 65 to 74, with 219 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 44% 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. Dimassa's median patient age at 46, with 60% women.

Medicare patients, 2024538
Average age74
Average risk score1.99
Also on Medicaid44%

Dr. Dimassa's Medicare patients by age, 2024

Dr. Dimassa's Medicare patients by sex, 2024

  • Women35165%
  • Men18735%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis55%
  4. Diabetes46%
  5. Chronic kidney disease34%
  6. Ischemic heart disease34%
  7. Mood disorders33%
  8. Depression30%

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

Dr. Dimassa's patients across all payers

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

Patient panel by age, all payers

Median age 46

Patient panel by sex, all payers

  • Women60%
  • Men40%

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

Dr. Giancarlo Pasquale Dimassa wrote 470 Medicare Part D claims in 2024

In 2024, Dr. Dimassa wrote 470 Medicare Part D claims for 303 patients. 88% of them were for generic drugs. CMS names the drug for 256 of them, across 11 drugs with 11 or more claims each, at $22,198 in total drug cost. In 2023, CMS named 300 claims across 12 drugs.

Part D claims, 2024470
Drugs named by CMS11
Total drug cost$22,198
Part D patients303

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

  • Generic412 claims88%
  • Brand-name and other58 claims12%

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

  • Opioids7%34 of 470 claims
  • Antibiotics39%181 of 470 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: 3002024: 25615%

Drugs named by CMS: 11 in 2024, 12 in 2023.

See all prescribing by Dr. Dimassa

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. Giancarlo Pasquale Dimassa scored 97 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Dimassa for performance year 2024, reported as part of a group. Dr. Dimassa accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dimassa as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Dimassa's MIPS scores, performance year 2024

  • 97of 100Final score
  • 90of 100Quality
  • 40of 100Improvement Activities
  • 78of 100Cost

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

Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

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)

For MedTech and pharma teams

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Dr. Giancarlo Pasquale Dimassa has 3 publications on record

Dmand AI links 3 papers to Dr. Dimassa. Dr. Dimassa's most frequent co-authors are Laleh Gharahbaghian, MD and Bobby Massoudian, MD.

Papers3

Dr. Dimassa's most frequent co-authors

Recent publications by Dr. Dimassa

See all 3 publications and co-authors

See who Dr. Dimassa researches with

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

How network discovery works

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

Dr. Giancarlo Pasquale Dimassa received $20 in industry payments in 2022

CMS Open Payments shows 1 general payment to Dr. Dimassa from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $20.

Companies that paid Dr. Dimassa the most, 2022 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Dimassa

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

Dr. Giancarlo Pasquale Dimassa graduated from David Geffen School of Medicine at UCLA

Dr. Dimassa graduated from David Geffen School of Medicine at UCLA in 2001.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

Dr. Giancarlo Pasquale Dimassa accepts plans from 9 insurance carriers

Dr. Dimassa is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • HCSC
  • United Healthcare
  • Elevance
  • Aspirus Health Plan
  • Blue Cross and Blue Shield of Kansas City
  • CMS Medicare
  • +1 more carriersWith a free account

Plan types Dr. Dimassa accepts, by number of carriers

  1. PPO6
  2. HMO5
  3. Medicare5
  4. POS5
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Giancarlo Pasquale Dimassa'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 Affiliation DataDmand AI Practice Data
Primary practice, affiliations and health systemDmand 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)
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. Giancarlo Pasquale Dimassa

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. Giancarlo Pasquale Dimassa's NPI number?

Dr. Giancarlo Pasquale Dimassa's NPI number is 1255370797. It was assigned on June 6, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Giancarlo Pasquale Dimassa?

Dr. Giancarlo Pasquale Dimassa is an emergency medicine physician in Mission Hills, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Giancarlo Pasquale Dimassa practice?

Dr. Dimassa practices at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345. Dr. Dimassa also practices at 15031 W Rinaldi St, Mission Hills, CA 91345. Dr. Dimassa's primary practice is Sub-Acute Care Center in Mission Hills, California. Dmand AI also links Dr. Dimassa to 2 medical groups.

What is Dr. Giancarlo Pasquale Dimassa's office phone number?

The practice phone on file for Dr. Dimassa is (818) 898-4630.

What is Dr. Giancarlo Pasquale Dimassa's medical license number?

Dr. Dimassa holds California license A81063, one of the licenses on file in 15 states.

Which states has Dr. Giancarlo Pasquale Dimassa been licensed in?

Dmand AI has state licenses on file for Dr. Dimassa in California (2002 to 2026), Arizona (2021 to 2027), Colorado (2023 to 2027), Montana (2023 to 2027), New Jersey (2020 to 2027), Nevada (2021 to 2027), New York (2022 to 2027), Florida (2022 to 2026), Idaho (2020 to 2026), Illinois (2020 to 2026), Kansas (2021 to 2026), Mississippi (2022 to 2026), North Dakota (2023 to 2026), Ohio (2022 to 2026) and Tennessee (2023 to 2026).

Which hospitals is Dr. Giancarlo Pasquale Dimassa affiliated with?

Dr. Dimassa is affiliated with Providence Holy Cross Medical Center.

What medical group is Dr. Giancarlo Pasquale Dimassa part of?

Dr. Dimassa is linked to Vituity. Dmand AI links Dr. Dimassa to 2 more medical groups.

Does Dr. Giancarlo Pasquale Dimassa accept Medicare?

Yes. CMS data shows Dr. Dimassa billed Medicare for 1,310 services in 2024, and Dr. Dimassa accepts Medicare assignment.

Does Dr. Giancarlo Pasquale Dimassa offer telehealth?

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

Show 11 more questionsShow fewer questions

What is Dr. Giancarlo Pasquale Dimassa's MIPS score?

Dr. Dimassa's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.

How many Medicare patients does Dr. Giancarlo Pasquale Dimassa see?

CMS counts 538 Medicare patients who saw Dr. Dimassa in 2024, with an average age of 74.

Is Dr. Giancarlo Pasquale Dimassa board certified?

Yes. Dr. Dimassa is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does Dr. Giancarlo Pasquale Dimassa bill to Medicare?

In 2024, Dr. Dimassa's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and diagnostic imaging (71045).

Where did Dr. Giancarlo Pasquale Dimassa go to medical school?

Dr. Dimassa graduated from David Geffen School of Medicine at UCLA in 2001.

What drugs does Dr. Giancarlo Pasquale Dimassa prescribe most?

In 2024 Medicare Part D data, Dr. Dimassa's most prescribed drugs by claims were Azithromycin, Cephalexin and Hydrocodone-Acetaminophen.

Has Dr. Giancarlo Pasquale Dimassa received payments from drug or device companies?

CMS Open Payments shows $20 in general payments to Dr. Dimassa from 1 company from 2022 to 2022. The largest total came from Gilead Sciences, Inc.

How long has Dr. Giancarlo Pasquale Dimassa been practicing?

Dr. Dimassa graduated from medical school in 2001, 25 years ago.

Does Dr. Giancarlo Pasquale Dimassa do research?

Dmand AI links 3 publications to Dr. Dimassa.

Who does Dr. Giancarlo Pasquale Dimassa publish with?

Dr. Dimassa's most frequent co-authors are Laleh Gharahbaghian, MD (1 shared paper) and Bobby Massoudian, MD (1 shared paper).

What insurance does Dr. Giancarlo Pasquale Dimassa accept?

Dr. Dimassa is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. PPO plans come from the most carriers, 6. Check the plan with the practice before a visit.

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