Dr. Amber Messitt, DO
- Medicare services, 2024
- 256
- Medicare patients, 2024
- 74
- Part D claims, 2024
- 3,588
- Hospital affiliations
- 3
- Industry payments
- $337
- Practice address
- 1539 Atwood Ave Suite 101 Suite 101, Johnston, RI 02919-3262
- Practice phone
- Call (401) 272-3410
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ocean State Medical
Primary care practice · Johnston, Rhode Island
Find Dr. Messitt's professional email, personal email and mobile number
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Dr. Amber Messitt is an internist in Johnston, Rhode Island
Dr. Messitt practices at Ocean State Medical in Johnston, Rhode Island.
Dr. Messitt's NPI, 1306157730, was assigned on June 30, 2010. Dr. Messitt graduated from University of New England, College of Osteo Medicine in 2010. Dr. Messitt holds Rhode Island license DO00718.
- NPI
- 1306157730NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779722491
- NPI enumeration date
- June 30, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (401) 272-3410
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Amber Messitt practices at Ocean State Medical in Johnston, Rhode Island
Dr. Messitt's primary practice is Ocean State Medical, at 1539 Atwood Ave Suite 101 Suite 101, Johnston, RI 02919-3262. The practice phone is (401) 272-3410.
- Ocean State Medical1539 Atwood Ave Suite 101 Suite 101, Johnston, RI 02919-3262Phone(401) 272-3410
Source: Dmand AI Affiliation Data
Dr. Amber Messitt is affiliated with 4 sites of care and 1 medical group
Dr. Messitt's primary practice is Ocean State Medical in Johnston, Rhode Island. Dr. Messitt is also affiliated with The Miriam Hospital. The medical group on file is Ocean State Medical. Dmand AI also links Dr. Messitt to 2 more hospitals, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Amber Messitt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Messitt practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ocean State Medical | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Amber Messitt is one of 805 internists in Rhode Island
Internal medicine is Dr. Messitt's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Messitt is licensed in Rhode Island.
Specialties and state licenses
- Internal medicine, Rhode IslandPrimary
Internists near Dr. Messitt
Counts of internists 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. Amber Messitt billed Medicare for 256 services in 2024
CMS data shows 256 Medicare services from Dr. Messitt across 5 procedure codes in 2024, for 74 Medicare patients. Medicare paid $18,989 for them. Every service was in an office.
Dr. Messitt's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1992024: 1886%
- Other services
- 2023: 702024: 5127%
- Tests and treatments
- 2023: 232024: 1726%
Dr. Messitt compared with the Rhode Island median for internists, 2024
- Dr. Messitt
- Rhode Island median
- Medicare services
- 256vs 34225% below
- Medicare patients
- 74vs 14549% below
- Part D claims
- 3,207vs 28411.3 times
Medians across 772 internists in Rhode Island with Dmand AI profiles that report each measure.
Dr. Messitt'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Messitt and other internists in Rhode Island.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Amber Messitt treated 74 Medicare patients in 2024, average age 71
CMS counts 74 Medicare patients who saw Dr. Messitt in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Messitt's median patient age at 48, with 84% women.
Dr. Messitt's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Messitt's Medicare patients by sex, 2024
- Women6284%
- Men1216%
Chronic conditions among Dr. Messitt's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis45%
- Chronic kidney disease36%
- Diabetes34%
- Anxiety32%
- Mood disorders31%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Messitt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 48
Patient panel by sex, all payers
- Women84%
- Men16%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Amber Messitt wrote 3,588 Medicare Part D claims in 2024
In 2024, Dr. Messitt wrote 3,588 Medicare Part D claims for 298 patients. 93% of them were for generic drugs. CMS names the drug for 3,207 of them, across 63 drugs with 11 or more claims each, at $51,639 in total drug cost. In 2023, CMS named 3,126 claims across 62 drugs.
Dr. Messitt's Part D claims by kind of drug, 2024
- Generic3,333 claims93%
- Brand-name and other255 claims7%
Dr. Messitt'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. Messitt's Part D claims, 2024
- Antibiotics4%155 of 3,588 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: 3,1262024: 3,2073%
Drugs named by CMS: 63 in 2024, 62 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
Dr. Amber Messitt offers telehealth to Medicare patients
Dr. Messitt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Messitt as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Amber Messitt received $337 in industry payments from 2024 to 2025
CMS Open Payments shows 14 general payments to Dr. Messitt from 6 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $188.
General payments to Dr. Messitt by program year, 2024 to 2025
Companies that paid Dr. Messitt the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Amber Messitt graduated from University of New England, College of Osteo Medicine
Dr. Messitt graduated from University of New England, College of Osteo Medicine in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Amber Messitt'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Dr. Amber Messitt
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. Amber Messitt's NPI number?
Dr. Amber Messitt's NPI number is 1306157730. It was assigned on June 30, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Amber Messitt?
Dr. Amber Messitt is an internist in Johnston, Rhode Island. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Amber Messitt practice?
Dr. Messitt practices at 1539 Atwood Ave Suite 101 Suite 101, Johnston, RI 02919-3262. Dr. Messitt's primary practice is Ocean State Medical in Johnston, Rhode Island. Dmand AI also links Dr. Messitt to 2 hospitals.
What is Dr. Amber Messitt's office phone number?
The practice phone on file for Dr. Messitt is (401) 272-3410.
What is Dr. Amber Messitt's medical license number?
Dr. Messitt holds Rhode Island license DO00718.
Which hospitals is Dr. Amber Messitt affiliated with?
Dr. Messitt is affiliated with The Miriam Hospital. Dmand AI links Dr. Messitt to 2 more hospitals.
What medical group is Dr. Amber Messitt part of?
Dr. Messitt is linked to Ocean State Medical.
Does Dr. Amber Messitt accept Medicare?
Yes. CMS data shows Dr. Messitt billed Medicare for 256 services in 2024, and Dr. Messitt accepts Medicare assignment.
Does Dr. Amber Messitt offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Messitt as offering telehealth services.
How many Medicare patients does Dr. Amber Messitt see?
CMS counts 74 Medicare patients who saw Dr. Messitt in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Amber Messitt bill to Medicare?
In 2024, Dr. Messitt's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
Where did Dr. Amber Messitt go to medical school?
Dr. Messitt graduated from University of New England, College of Osteo Medicine in 2010.
What drugs does Dr. Amber Messitt prescribe most?
In 2024 Medicare Part D data, Dr. Messitt's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Levothyroxine Sodium.
Has Dr. Amber Messitt received payments from drug or device companies?
CMS Open Payments shows $337 in general payments to Dr. Messitt from 6 companies from 2024 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Amber Messitt been practicing?
Dr. Messitt graduated from medical school in 2010, 16 years ago.
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