Dr. Nicole L Grenier , MD
Dermatology โข Warwick, RI
400 Bald Hill Rd
Warwick, RI 028861617
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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NPI assigned on April 16, 2007; this date does not establish years in practice.
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Published CMS data list 2,408 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:
- 17003 โ Destruction of precancer skin growth, 2-14 growths: 857 service units.
- 99213 โ Established patient outpatient office visit: 615 service units.
- 17000 โ Destruction of precancer skin growth, 1 growth: 314 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 9 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 762 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:
- Triamcinolone Acetonide โ 152 prescription fills, including refills.
- Ketoconazole โ 134 prescription fills, including refills.
- Clobetasol Propionate โ 51 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 20 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Dermatology in Rhode Island (2024, 45 clinicians with data). Median for this group: 1,937. Middle half: 1,319 to 2,870.
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 2,167 in 2020 to 2,408 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
400 Bald Hill Rd
Warwick, RI 028861617
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 South Kingstown, RI. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 3 distinct group names: Brown Dermatology Inc; Lifespan Physician Group Inc; Nantucket Dermatology Llc. 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
Warren Alpert Medical School Of Brown University
2006
What Public CMS Data Show
Dermatology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
611 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 $147,909 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 $102,268 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
948 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
$154,173 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.
Open Payments general payments, program year 2025
All general payments: $65.14 across 2 records.
By nature of payment
- Food and Beverage: $65.14 across 2 records.
Reporting-company totals
- ABBVIE INC.: $65.14 across 2 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
20 years (graduated 2006)
CMS Doctors and Clinicians data list 2006 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
2007
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
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Grenier 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. Grenier 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 65% of clinicians listed under Dermatology in Rhode Island (2024, 45 clinicians with data). Median for this group: 1,937. Middle half: 1,319 to 2,870.
Too few clinicians listed under Dermatology in Warwick have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
Close to the middle for clinicians listed under Dermatology in Rhode Island (2024, 45 clinicians with data). Median for this group: $134,354. Middle half: $96,092 to $216,333.
Too few clinicians listed under Dermatology in Warwick have Medicare Part B data for 2024 to compare.
Paid by Medicare
Close to the middle for clinicians listed under Dermatology in Rhode Island (2024, 45 clinicians with data). Median for this group: $98,678. Middle half: $65,153 to $158,382.
Too few clinicians listed under Dermatology in Warwick have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 70% of clinicians listed under Dermatology in Rhode Island (2024, 51 clinicians with data). Median for this group: 582. Middle half: 252 to 966.
Too few clinicians listed under Dermatology in Warwick have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Dermatology in Rhode Island (2024, 51 clinicians with data). Median for this group: $50,229. Middle half: $6,623 to $165,016.
Too few clinicians listed under Dermatology in Warwick have Medicare Part D data for 2024 to compare.
2 active clinicians are listed under Dermatology with a practice address in Warwick, RI (76 in Rhode Island).
Addresses are self-reported to NPPES and may be out of date.
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 increased 11% from 2,167 in 2020 to 2,408 in 2024.
- 2020: 2,167
- 2021: 2,813
- 2022: 2,709
- 2023: 2,508
- 2024: 2,408
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $140,362 in 2020 and $147,909 in 2024.
- 2020: $140,362
- 2021: $177,764
- 2022: $167,463
- 2023: $160,505
- 2024: $147,909
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Paid by Medicare
Paid by Medicare stayed about the same: $100,458 in 2020 and $102,268 in 2024.
- 2020: $100,458
- 2021: $124,867
- 2022: $115,607
- 2023: $111,971
- 2024: $102,268
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 714 in 2020 and 762 in 2024.
- 2020: 714
- 2021: 679
- 2022: 773
- 2023: 735
- 2024: 762
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30-day fills
30-day fills increased 10% from 860 in 2020 to 948 in 2024.
- 2020: 860
- 2021: 827
- 2022: 953
- 2023: 959
- 2024: 948
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Part D drug cost
Part D drug cost increased 358% from $33,638 in 2020 to $154,173 in 2024.
- 2020: $33,638
- 2021: $70,985
- 2022: $73,989
- 2023: $70,533
- 2024: $154,173
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $39.43 in 2019 to $65.14 in 2025.
- 2019: $39.43
- 2022: $36.48
- 2025: $65.14
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): fewer than 11 records totaling $65.14.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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โ | General | $35.10 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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โ | General | $30.04 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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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17003
Destruction of precancer skin growth, 2-14 growths
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857 | 153 | $16.59 | $6.78 |
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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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615 | 483 | $211.38 | $91.63 |
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17000
Destruction of precancer skin growth, 1 growth
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314 | 210 | $164.31 | $55.42 |
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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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203 | 168 | $299.11 | $128.71 |
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11102
Biopsy of related skin growth, first growth
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174 | 149 | $246.15 | $93.55 |
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17110
Destruction of skin growth, 1-14 growths
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168 | 146 | $275.95 | $114.99 |
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11103
Biopsy of related skin growth, each additional growth
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37 | 27 | $125.22 | $50.98 |
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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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29 | 26 | $132.41 | $57.16 |
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12032
Intermediate repair of wound of scalp, underarms, trunk, arms, or legs, 2.6-7.5 cm
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11 | 11 | $712.73 | $279.62 |
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 |
|---|---|---|---|---|---|
| Triamcinolone Acetonide | Triamcinolone Acetonide | 152 | 3,742 | $2,236.36 | 102 |
| Ketoconazole | Ketoconazole | 134 | 4,912 | $2,667.34 | 64 |
| Clobetasol Propionate | Clobetasol Propionate | 51 | 1,398 | $2,254.23 | 36 |
| Fluorouracil | Fluorouracil | 42 | 1,124 | $2,943.96 | 42 |
| Betamethasone Dipropionate | Betamethasone Dipropionate | 41 | 1,265 | $1,484.59 | 27 |
| Doxycycline Monohydrate | Doxycycline Monohydrate | 38 | 971 | $880.55 | 26 |
| Valacyclovir | Valacyclovir Hcl | 37 | 961 | $708.20 | 16 |
| Metronidazole | Metronidazole | 36 | 1,532 | $1,877.27 | 21 |
| Mupirocin | Mupirocin | 28 | 638 | $288.86 | 16 |
| Doxycycline Hyclate | Doxycycline Hyclate | 27 | 1,590 | $1,069.53 | โ |
| Minocycline Hcl | Minocycline Hcl | 25 | 750 | $408.40 | โ |
| Hydrocortisone | Hydrocortisone | 21 | 471 | $138.01 | 15 |
| Minoxidil | Minoxidil | 21 | 1,680 | $210.71 | โ |
| Betamethasone Diprop Augmented | Betamethasone/Propylene Glyc | 21 | 657 | $942.95 | 16 |
| Tretinoin | Tretinoin | 19 | 502 | $945.85 | 12 |
| Nystatin | Nystatin | 17 | 540 | $278.77 | โ |
| Ammonium Lactate | Ammonium Lactate | 15 | 480 | $309.40 | โ |
| Fluocinonide | Fluocinonide | 13 | 345 | $429.43 | โ |
| Enbrel | Etanercept | 12 | 336 | $87,318.98 | โ |
| Dupixent Syringe | Dupilumab | 12 | 336 | $46,779.40 | โ |
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: 2025-12-17NUCC Taxonomy Code: 207N00000X
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - DERMATOLOGY
I20160601001920
MA
5092839225
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
Lifespan Physician Group Inc
185 A High Service Ave, North Providence, RI 029045114
Phone: 4013546050
Nantucket Dermatology Llc
4 /2 Bartlett Rd, Nantucket, MA 025544381
Phone: 7813982225
Lifespan Physician Group Inc
185 High Service Ave, North Providence, RI 029045114
Phone: 4013546050
Nantucket Dermatology Llc
5 Federal St, Nantucket, MA 025541703
Lifespan Physician Group Inc
65 Village Square Dr, South Kingstown, RI 028792569
Phone: 4014447959
Brown Dermatology Inc
593 Eddy St, Providence, RI 029034923
Phone: 4014447959
Lifespan Physician Group Inc
400 Bald Hill Rd, Warwick, RI 028861617
Phone: 4014447959
Secondary Practice Locations
65 Village Square Dr Ste 201
South Kingstown, RI 028792569
Phone: 4014447959
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dermatology
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Dermatology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 15 LA SALLE SQ, PROVIDENCE, RI 029031814 (Tel: 4014446779)
Additional practice office at 65 Village Square Dr Ste 201, South Kingstown, RI 028792569
Registered at 400 BALD HILL RD, WARWICK, RI 028861617 (Tel: 4014447959)
Registered at 110 ELM ST FL 2, PROVIDENCE, RI 029034626 (Tel: 4014435122)
Dermatology (license number reported to NPPES: RI MD13784)
NPI status registered as active in NPPES database
Registered at 3000 N UNIVERSITY DR, SUITE K, CORAL SPRINGS, FL 330655055 (Tel: 9547552288)
Registered at 3000 N UNIVERSITY DR, SUITE K, CORAL SPRINGS, FL 330655055 (Tel: 9547552288)
Recorded as NICOLE GRENIER, M.D.
Dermatology (license number reported to NPPES: FL ME106744)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
15 La Salle Sq
Providence, RI 029031814
Phone: 4014446779