Dr. Patrick Terrassa, MD

  • Marysville, CA
  • Emergency medicine physician
NPI1649858879PAC ID7911444575
Medicare services, 2024
482
Medicare patients, 2024
281
Part D claims, 2024
169
Hospital affiliations
3
Medical group
1
Practice address
726 4th St, Marysville, CA 95901
Practice phone
Call (530) 749-4300
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Adventist Health and Rideout

Hospital · Marysville, California

See all 4 affiliations

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Dr. Patrick Terrassa is an emergency medicine physician in Marysville, California

Dr. Terrassa practices at Adventist Health and Rideout in Marysville, California, part of Adventist Health.

Dr. Terrassa's NPI, 1649858879, was assigned on March 30, 2021. Dr. Terrassa graduated from UC Davis School of Medicine in 2021. Dr. Terrassa's California license number on file is A187055.

NPI and contact details
Medicare PAC ID
7911444575
NPI enumeration date
March 30, 2021
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(530) 749-4300
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
31
Medical school graduation
2021

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

Dr. Patrick Terrassa practices at Adventist Health and Rideout in Marysville, California

Dr. Terrassa's primary practice is Adventist Health and Rideout, at 726 4th St, Marysville, CA 95901 in Yuba County. The practice phone is (530) 749-4300.

Source: Dmand AI Affiliation Data

Dr. Patrick Terrassa is affiliated with 3 sites of care and 1 medical group

Dr. Terrassa's primary practice is Adventist Health and Rideout in Marysville, California, part of Adventist Health. Dr. Terrassa is also affiliated with Enloe Health. The medical group on file is Vituity. Dmand AI also links Dr. Terrassa to 1 more hospital, named with a free account.

See all 4 affiliations for Dr. Terrassa

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

Dmand AI tracks the EHR system at Dr. Patrick Terrassa's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Terrassa practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Adventist Health and RideoutAvailable with a free account
+2 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Patrick Terrassa is one of 7,423 emergency medicine physicians in California

Emergency medicine is Dr. Terrassa's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Terrassa has a license on file in California.

Specialties and state licenses

  • Emergency medicine, CaliforniaPrimaryLicense A187055 · 2023 to 2025 · taxonomy 207P00000X

Emergency medicine physicians near Dr. Terrassa

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. Patrick Terrassa billed Medicare for 482 services in 2024

CMS data shows 482 Medicare services from Dr. Terrassa across 3 procedure codes in 2024, for 281 Medicare patients. Medicare paid $38,191 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024482
Medicare patients281
Paid by Medicare$38,191
Procedure codes3

Dr. Terrassa's Medicare services by type, 2024

  1. Office and hospital visits268
  2. Tests and treatments214

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

  • Dr. Terrassa
  • California median
Medicare services
482vs 26582% above
Medicare patients
281vs 24316% above
Part D claims
43vs 6231% below

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

Dr. Terrassa'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. Terrassa

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

Dr. Patrick Terrassa treated 281 Medicare patients in 2024, average age 75

CMS counts 281 Medicare patients who saw Dr. Terrassa in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 56% are also on Medicaid. Their average risk score is 2.21, 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. Terrassa's median patient age at 41, with 59% women.

Medicare patients, 2024281
Average age75
Average risk score2.21
Also on Medicaid56%

Dr. Terrassa's Medicare patients by age, 2024

Dr. Terrassa's Medicare patients by sex, 2024

  • Women16759%
  • Men11441%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis52%
  4. Diabetes51%
  5. Ischemic heart disease47%
  6. Heart failure46%
  7. Chronic kidney disease42%
  8. Mood disorders37%

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

Dr. Terrassa's patients across all payers

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

Patient panel by age, all payers

Median age 41

Patient panel by sex, all payers

  • Women59%
  • Men41%

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

Dr. Patrick Terrassa wrote 169 Medicare Part D claims in 2024

In 2024, Dr. Terrassa wrote 169 Medicare Part D claims for 97 patients. 96% of them were for generic drugs. CMS names the drug for 43 of them, across 3 drugs with 11 or more claims each, at $419 in total drug cost. In 2023, CMS named 54 claims across 4 drugs.

Part D claims, 2024169
Drugs named by CMS3
Total drug cost$419
Part D patients97

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

  • Generic163 claims96%
  • Brand-name and other6 claims4%

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

  • Opioids7%11 of 169 claims
  • Antibiotics30%50 of 169 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: 542024: 4320%

Drugs named by CMS: 3 in 2024, 4 in 2023.

See all prescribing by Dr. Terrassa

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

How Dr. Patrick Terrassa takes part in Medicare

Dr. Terrassa accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Patrick Terrassa graduated from UC Davis School of Medicine

Dr. Terrassa graduated from UC Davis School of Medicine in 2021.

  1. Medical schoolUC Davis School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Patrick Terrassa accepts plans from 1 insurance carrier

Dr. Terrassa is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for Dr. Patrick Terrassa'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 phoneDmand AI Affiliation 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)
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. Patrick Terrassa

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. Patrick Terrassa's NPI number?

Dr. Patrick Terrassa's NPI number is 1649858879. It was assigned on March 30, 2021, and it is active in the NPI Registry.

What kind of doctor is Dr. Patrick Terrassa?

Dr. Patrick Terrassa is an emergency medicine physician in Marysville, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Patrick Terrassa practice?

Dr. Terrassa practices at 726 4th St, Marysville, CA 95901. Dr. Terrassa's primary practice is Adventist Health and Rideout in Marysville, California, part of Adventist Health. Dmand AI also links Dr. Terrassa to 1 hospital.

What is Dr. Patrick Terrassa's office phone number?

The practice phone on file for Dr. Terrassa is (530) 749-4300.

What is Dr. Patrick Terrassa's medical license number?

Dr. Terrassa's California license number on file is A187055.

Which hospitals is Dr. Patrick Terrassa affiliated with?

Dr. Terrassa practices at Adventist Health and Rideout in Marysville, California. Dr. Terrassa is also affiliated with Enloe Health. Dmand AI links Dr. Terrassa to 1 more hospital.

What medical group is Dr. Patrick Terrassa part of?

Dr. Terrassa is linked to Vituity.

Does Dr. Patrick Terrassa accept Medicare?

Yes. CMS data shows Dr. Terrassa billed Medicare for 482 services in 2024, and Dr. Terrassa accepts Medicare assignment.

How many Medicare patients does Dr. Patrick Terrassa see?

CMS counts 281 Medicare patients who saw Dr. Terrassa in 2024, with an average age of 75.

What services does Dr. Patrick Terrassa bill to Medicare?

In 2024, Dr. Terrassa's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).

Show 4 more questionsShow fewer questions

Where did Dr. Patrick Terrassa go to medical school?

Dr. Terrassa graduated from UC Davis School of Medicine in 2021.

What drugs does Dr. Patrick Terrassa prescribe most?

In 2024 Medicare Part D data, Dr. Terrassa's most prescribed drugs by claims were Cefdinir, Ondansetron ODT and Hydrocodone-Acetaminophen.

How long has Dr. Patrick Terrassa been practicing?

Dr. Terrassa graduated from medical school in 2021, 5 years ago.

What insurance does Dr. Patrick Terrassa accept?

Dr. Terrassa is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

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