Dr. Derek H. Keller , MD
Anesthesiology โข Providence, RI
593 Eddy Street, Davol 129
Providence, RI 029034923
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 September 18, 2008; this date does not establish years in practice.
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Published CMS data list 78 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:
- 01922 โ Anesthesia for x-ray or radiation therapy: 25 service units.
- 00910 โ Anesthesia for other procedure on urinary system through urethra: 24 service units.
- 00731 โ Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope: 18 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 4 records in the table ยท Guide: How to read Medicare Part B data
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Close to the middle for Medicare Part B services among clinicians listed under Anesthesiology in Providence, RI (2024, 66 clinicians with data). Median for this group: 73. Middle half: 39 to 156.
Close to the middle for Medicare Part B services among clinicians listed under Anesthesiology in Rhode Island (2024, 89 clinicians with data). Median for this group: 97. Middle half: 44 to 247.
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 114 in 2020 to 78 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
593 Eddy Street
Davol 129
Providence, RI 029034923
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 1 group name: Narragansett Bay Anesthesia 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
Boston University School Of Medicine
2008
What Public CMS Data Show
Anesthesiology: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
183 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 $13,233 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 $10,543 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.
Open Payments general payments, program year 2025
All general payments: $326.25 across 13 records.
By nature of payment
- Food and Beverage: $326.25 across 13 records.
Reporting-company totals (3 largest of 4)
- Takeda Pharmaceuticals U.S.A., Inc.: $107.91 across 4 records.
- Merck Sharp & Dohme LLC: $98.75 across 4 records.
- Janssen Pharmaceuticals, Inc: $61.90 across 3 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
18 years (graduated 2008)
CMS Doctors and Clinicians data list 2008 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
2008
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. Keller 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. Keller 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 Providence and Rhode Island
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Anesthesiology in Providence, RI (2024, 66 clinicians with data). Median for this group: 73. Middle half: 39 to 156.
Close to the middle for clinicians listed under Anesthesiology in Rhode Island (2024, 89 clinicians with data). Median for this group: 97. Middle half: 44 to 247.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Anesthesiology in Providence, RI (2024, 66 clinicians with data). Median for this group: $11,499. Middle half: $4,851 to $22,763.
Close to the middle for clinicians listed under Anesthesiology in Rhode Island (2024, 89 clinicians with data). Median for this group: $11,916. Middle half: $6,200 to $25,638.
Paid by Medicare
A higher Medicare payment amount than 60% of clinicians listed under Anesthesiology in Providence, RI (2024, 66 clinicians with data). Median for this group: $9,089. Middle half: $4,063 to $17,966.
Close to the middle for clinicians listed under Anesthesiology in Rhode Island (2024, 89 clinicians with data). Median for this group: $9,641. Middle half: $4,577 to $20,065.
126 active clinicians are listed under Anesthesiology with a practice address in Providence, RI (168 in Rhode Island).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Providence
1.6% of these 126 clinicians have the CMS telehealth indicator.
61.1% of these 126 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 decreased 32% from 114 in 2020 to 78 in 2024.
- 2020: 114
- 2021: 135
- 2022: 163
- 2023: 97
- 2024: 78
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Medicare-allowed amount
Medicare-allowed amount decreased 11% from $14,901 in 2020 to $13,233 in 2024.
- 2020: $14,901
- 2021: $17,524
- 2022: $25,365
- 2023: $17,276
- 2024: $13,233
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Paid by Medicare
Paid by Medicare decreased 11% from $11,890 in 2020 to $10,543 in 2024.
- 2020: $11,890
- 2021: $13,726
- 2022: $19,983
- 2023: $13,692
- 2024: $10,543
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $506.26 in 2022 to $326.25 in 2025.
- 2022: $506.26
- 2023: $398.78
- 2024: $137.11
- 2025: $326.25
Sources: CMS Medicare Physician & Other Practitioners (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): 13 records totaling $326.25.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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ENTYVIO | General | $38.61 |
| Intercept Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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OCALIVA | General | $29.96 |
| Intercept Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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OCALIVA | General | $27.73 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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BRIDION | General | $27.57 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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ENTYVIO | General | $25.54 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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BRIDION | General | $24.65 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
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BRIDION | General | $24.28 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $23.70 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
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TREMFYA | General | $23.08 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
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ENTYVIO | General | $22.41 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
BRIDION | General | $22.25 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
ENTYVIO | General | $21.35 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
TREMFYA | General | $15.12 |
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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01922
Anesthesia for x-ray or radiation therapy
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25 | 25 | $1322.40 | $174.21 |
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00910
Anesthesia for other procedure on urinary system through urethra
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24 | 23 | $972.50 | $121.66 |
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00731
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
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18 | 16 | $1016.67 | $131.31 |
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01214
Anesthesia for total hip replacement
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11 | 11 | $2462.73 | $326.74 |
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.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
NUCC Taxonomy Code: 207L00000X
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ANESTHESIOLOGY
I20120913000522
RI
5890943039
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
Narragansett Bay Anesthesia Llc
455 Toll Gate Rd, Warwick, RI 028862759
Phone: 4017377000
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Anesthesiology
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Internal Medicine - Critical Care Medicine
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Career & Practice History
NPI enumerated September 18, 2008.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Anesthesiology Specialists in Providence
- Dr. Edward Suh, MD
- Dr. Dhhananjay Mehta, MD
- Dr. Timothy Connelly, DO
- Dr. Carin Got, MD
- Dr. Alessandra Rizzo, MD
- Dr. Patrick Van Kirk, MD
Mailing Address
One Virginia Avenue, Suite 201
Providence, RI 02905
Phone: 4014900916