Dr. Mark Lewis Petrarca , DO
Emergency Medicine โข Warwick, RI
455 Toll Gate Rd
Warwick, RI 028862759
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Mark Petrarca is listed in NPPES under Emergency Medicine.
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NPI assigned on July 10, 2009; this date does not establish years in practice.
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Published CMS data list 420 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99285 โ Emergency department visit with high level of medical decision making: 155 service units.
- 99213 โ Established patient outpatient office visit: 125 service units.
- 99214 โ Established patient outpatient office visit: 45 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 7 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 271 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Doxycycline Hyclate โ 50 prescription fills, including refills.
- Cephalexin โ 39 prescription fills, including refills.
- Azithromycin โ 33 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 10 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 70% of clinicians listed under Emergency Medicine in Warwick, RI (2024, 52 clinicians with data). Median for this group: 315. Middle half: 189 to 443.
More Medicare Part B services than 75% of clinicians listed under Emergency Medicine in Rhode Island (2024, 264 clinicians with data). Median for this group: 246. Middle half: 158 to 396.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 425 in 2020 to 420 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
455 Toll Gate Rd
Warwick, RI 028862759
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Nashua, NH. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 2 distinct group names: Elliot Professional Services; St. Joseph Hospital Of Nashua Nh. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
University Of New England, College Of Osteo Medicine
2009
What Public CMS Data Show
Emergency Medicine: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
433 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $50,673 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $37,837 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
271 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$2,140 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2019โ2025.
Years since graduation
17 years (graduated 2009)
CMS Doctors and Clinicians data list 2009 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2009
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Petrarca has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Petrarca as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Warwick and Rhode Island
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 70% of clinicians listed under Emergency Medicine in Warwick, RI (2024, 52 clinicians with data). Median for this group: 315. Middle half: 189 to 443.
More Medicare Part B services than 75% of clinicians listed under Emergency Medicine in Rhode Island (2024, 264 clinicians with data). Median for this group: 246. Middle half: 158 to 396.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Emergency Medicine in Warwick, RI (2024, 52 clinicians with data). Median for this group: $43,159. Middle half: $26,857 to $55,222.
A higher Medicare-allowed amount than 65% of clinicians listed under Emergency Medicine in Rhode Island (2024, 264 clinicians with data). Median for this group: $38,542. Middle half: $22,208 to $57,411.
Paid by Medicare
Close to the middle for clinicians listed under Emergency Medicine in Warwick, RI (2024, 52 clinicians with data). Median for this group: $33,211. Middle half: $20,698 to $42,573.
A higher Medicare payment amount than 65% of clinicians listed under Emergency Medicine in Rhode Island (2024, 264 clinicians with data). Median for this group: $29,328. Middle half: $17,169 to $44,435.
Medicare Part D prescriptions
More Part D prescriptions than 90% of clinicians listed under Emergency Medicine in Warwick, RI (2024, 36 clinicians with data). Median for this group: 59. Middle half: 29 to 122.
More Part D prescriptions than 90% of clinicians listed under Emergency Medicine in Rhode Island (2024, 153 clinicians with data). Median for this group: 51. Middle half: 21 to 132.
Part D drug cost
A higher Part D drug cost than 90% of clinicians listed under Emergency Medicine in Warwick, RI (2024, 36 clinicians with data). Median for this group: $277. Middle half: $167 to $1,132.
A higher Part D drug cost than 90% of clinicians listed under Emergency Medicine in Rhode Island (2024, 153 clinicians with data). Median for this group: $351. Middle half: $136 to $1,131.
102 active clinicians are listed under Emergency Medicine with a practice address in Warwick, RI (418 in Rhode Island).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Warwick
2% of these 102 clinicians have the CMS telehealth indicator.
45.1% of these 102 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 425 in 2020 and 420 in 2024.
- 2020: 425
- 2021: 438
- 2022: 533
- 2023: 392
- 2024: 420
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Medicare-allowed amount
Medicare-allowed amount decreased 14% from $59,148 in 2020 to $50,673 in 2024.
- 2020: $59,148
- 2021: $54,091
- 2022: $63,929
- 2023: $49,929
- 2024: $50,673
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Paid by Medicare
Paid by Medicare decreased 18% from $45,922 in 2020 to $37,837 in 2024.
- 2020: $45,922
- 2021: $40,506
- 2022: $48,987
- 2023: $36,598
- 2024: $37,837
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 230% from 82 in 2020 to 271 in 2024.
- 2020: 82
- 2021: 60
- 2022: 133
- 2023: 182
- 2024: 271
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30-day fills
30-day fills increased 230% from 82 in 2020 to 271 in 2024.
- 2020: 82
- 2021: 60
- 2022: 133
- 2023: 182
- 2024: 271
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Part D drug cost
Part D drug cost went from $875 in 2020 to $2,140 in 2024.
- 2020: $875
- 2021: $531
- 2022: $2,045
- 2023: $2,228
- 2024: $2,140
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99285
Emergency department visit with high level of medical decision making
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155 | 150 | $442.46 | $176.14 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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125 | 124 | $200.38 | $66.30 |
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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45 | 45 | $285.87 | $98.61 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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35 | 35 | $272.94 | $81.91 |
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99284
Emergency department visit with moderate level of medical decision making
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34 | 32 | $362.41 | $121.36 |
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99291
Critical care, first 30-74 minutes
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15 | 15 | $591.13 | $214.70 |
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99212
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
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11 | 11 | $133.27 | $39.35 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Doxycycline Hyclate | Doxycycline Hyclate | 50 | 371 | $340.05 | 50 |
| Cephalexin | Cephalexin | 39 | 287 | $219.51 | 39 |
| Azithromycin | Azithromycin | 33 | 159 | $60.56 | 33 |
| Prednisone | Prednisone | 32 | 221 | $69.26 | 32 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 31 | 613 | $633.33 | 29 |
| Cefdinir | Cefdinir | 25 | 197 | $484.40 | 25 |
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 24 | 201 | $164.66 | 24 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 14 | 129 | $46.16 | 14 |
| Ondansetron Odt | Ondansetron | 12 | 36 | $58.35 | 12 |
| Mupirocin | Mupirocin | 11 | 136 | $63.41 | 11 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2022-10-31NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
NUCC Taxonomy Code: 390200000X
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - EMERGENCY MEDICINE
I20130712000369
NH
0042461121
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
St. Joseph Hospital Of Nashua Nh
172 Kinsley St, Nashua, NH 030603648
Phone: 6038845600
Elliot Professional Services
1 Elliot Way, Manchester, NH 031033502
Phone: 6036632830
Secondary Practice Locations
172 Kinsley St
Nashua, NH 030603648
Phone: 6038823000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Emergency Medicine
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Pulmonary Disease
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Family Nurse Practitioner
Internal Medicine
Doctor of Osteopathic Medicine (D.O.)
Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Student in an Organized Health Care Education/Training Program (license number reported to NPPES: RI LP01618)
NPI status registered as active in NPPES database
Registered at 455 TOLL GATE RD, WARWICK, RI 028862759 (Tel: 4017377010)
Registered at 455 TOLL GATE RD, WARWICK, RI 028862759 (Tel: 4017377010)
Recorded as MARK PETRARCA, D.O.
Emergency Medicine (license number reported to NPPES: NH 16048)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Emergency Medicine Providers in Warwick
- Dr. Kenneth Larsen, DO
- Dr. Landon Wood, DO
- Dr. Kathryn Kelly, DO
- Dr. Nadah Zafar, MD
- Jonathan Mitchell, FNP-C
- Dr. Katy Deblois, DO
Mailing Address
455 Toll Gate Rd
Warwick, RI 028862759
Phone: 4017377010