Mark Monterroso
- Medicare services, 2024
- 1,029
- Medicare patients, 2024
- 687
- Part D claims, 2024
- 333
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Practice address
- 75 Nielson Street, Watsonville, CA 95076
- Practice phone
- Call (831) 724-4741
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mark Monterroso's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Mark Monterroso is an emergency medicine physician in Watsonville, California
Mark Monterroso practices at Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District.
Mark Monterroso's NPI, 1780119743, was assigned on April 27, 2017. Mark Monterroso graduated from Loma Linda University School Of Medicine in 2017. Mark Monterroso holds California license A158668.
- NPI
- 1780119743NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951735935
- NPI enumeration date
- April 27, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 724-4741
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mark Monterroso practices at Watsonville Community Hospital in Watsonville, California
Mark Monterroso's primary practice is Watsonville Community Hospital, at 75 Nielson Street, Watsonville, CA 95076 in Santa Cruz County. The practice phone is (831) 724-4741.
- Watsonville Community Hospital75 Nielson Street, Watsonville, CA 95076 · Santa Cruz CountyPhone(831) 724-4741
Source: Dmand AI Affiliation Data
Mark Monterroso is affiliated with 3 sites of care and 1 medical group
Mark Monterroso's primary practice is Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District. Mark Monterroso is also affiliated with Kaweah Health Medical Center. The medical group on file is Vituity. Dmand AI also links Mark Monterroso to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mark Monterroso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Monterroso practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Watsonville Community Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Pajaro Valley Health Care District and 6.2K+ hospitals, with verified contacts in the same login.
Mark Monterroso is one of 7,423 emergency medicine physicians in California
Emergency medicine is Mark Monterroso's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Mark Monterroso is board certified in emergency medicine by the American Board of Emergency Medicine. Mark Monterroso is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Mark Monterroso
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
Mark Monterroso billed Medicare for 1,029 services in 2024
CMS data shows 1,029 Medicare services from Mark Monterroso across 6 procedure codes in 2024, for 687 Medicare patients. Medicare paid $96,334 for them. Every service was in a facility, such as a hospital, rather than an office.
Mark Monterroso's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7562024: 7244%
- Tests and treatments
- 2023: 2702024: 2721%
- Imaging
- 2023: 122024: 33175%
Mark Monterroso compared with the California median for emergency medicine physicians, 2024
- Mark Monterroso
- California median
- Medicare services
- 1,029vs 2653.9 times
- Medicare patients
- 687vs 2432.8 times
- Part D claims
- 229vs 623.7 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Mark Monterroso'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.
Need commercial claims for Mark Monterroso?
Medicare shows one payer. Book a meeting to get commercial claims data for Mark Monterroso and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Mark Monterroso treated 687 Medicare patients in 2024, average age 74
CMS counts 687 Medicare patients who saw Mark Monterroso in 2024. The largest group is 65 to 74, with 245 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 61% are also on Medicaid. Their average risk score is 1.92, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mark Monterroso's median patient age at 32, with 55% women.
Mark Monterroso's Medicare patients by age, 2024
Mark Monterroso's Medicare patients by sex, 2024
- Women37755%
- Men31045%
Chronic conditions among Mark Monterroso's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Diabetes51%
- Arthritis44%
- Chronic kidney disease36%
- Mood disorders33%
- Ischemic heart disease31%
- Anxiety30%
Share of Medicare patients with each condition. A patient can have several.
Mark Monterroso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mark Monterroso wrote 333 Medicare Part D claims in 2024
In 2024, Mark Monterroso wrote 333 Medicare Part D claims for 248 patients. 97% of them were for generic drugs. CMS names the drug for 229 of them, across 10 drugs with 11 or more claims each, at $1,428 in total drug cost. In 2023, CMS named 163 claims across 8 drugs.
Mark Monterroso's Part D claims by kind of drug, 2024
- Generic323 claims97%
- Brand-name and other10 claims3%
Mark Monterroso'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 Mark Monterroso's Part D claims, 2024
- Opioids11%37 of 333 claims
- Antibiotics55%182 of 333 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: 1632024: 22940%
Drugs named by CMS: 10 in 2024, 8 in 2023.
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
Mark Monterroso 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 Mark Monterroso for performance year 2024, reported as part of a group. Mark Monterroso accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Mark Monterroso'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)
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
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mark Monterroso received $51 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Mark Monterroso from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $28.
General payments to Mark Monterroso by program year, 2024 to 2025
Companies that paid Mark Monterroso the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Mark Monterroso graduated from Loma Linda University School Of Medicine
Mark Monterroso graduated from Loma Linda University School Of Medicine in 2017.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Mark Monterroso accepts plans from 1 insurance carrier
Mark Monterroso 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 Mark Monterroso's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Mark Monterroso
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Monterroso's NPI number?
Mark Monterroso's NPI number is 1780119743. It was assigned on April 27, 2017, and it is active in the NPI Registry.
What does Mark Monterroso specialize in?
Mark Monterroso is an emergency medicine physician in Watsonville, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Mark Monterroso practice?
Mark Monterroso practices at 75 Nielson Street, Watsonville, CA 95076. Mark Monterroso's primary practice is Watsonville Community Hospital in Watsonville, California, part of Pajaro Valley Health Care District. Dmand AI also links Mark Monterroso to 1 hospital.
What is Mark Monterroso's office phone number?
The practice phone on file for Mark Monterroso is (831) 724-4741.
What is Mark Monterroso's medical license number?
Mark Monterroso holds California license A158668.
Which hospitals is Mark Monterroso affiliated with?
Mark Monterroso practices at Watsonville Community Hospital in Watsonville, California. Mark Monterroso is also affiliated with Kaweah Health Medical Center. Dmand AI links Mark Monterroso to 1 more hospital.
What medical group is Mark Monterroso part of?
Mark Monterroso is linked to Vituity.
Does Mark Monterroso accept Medicare?
Yes. CMS data shows Mark Monterroso billed Medicare for 1,029 services in 2024, and Mark Monterroso accepts Medicare assignment.
What is Mark Monterroso's MIPS score?
Mark Monterroso's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Mark Monterroso see?
CMS counts 687 Medicare patients who saw Mark Monterroso in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
Is Mark Monterroso board certified?
Yes. Mark Monterroso is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Mark Monterroso bill to Medicare?
In 2024, Mark Monterroso's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Mark Monterroso go to medical school?
Mark Monterroso graduated from Loma Linda University School Of Medicine in 2017.
What drugs does Mark Monterroso prescribe most?
In 2024 Medicare Part D data, Mark Monterroso's most prescribed drugs by claims were Cephalexin, Cefdinir and Amoxicillin-Clavulanate Potass.
Has Mark Monterroso received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Mark Monterroso from 2 companies from 2024 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Mark Monterroso been practicing?
Mark Monterroso graduated from medical school in 2017, 9 years ago.
What insurance does Mark Monterroso accept?
Mark Monterroso 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.
Selling to emergency medicine practices?
See emergency medicine physicians in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card