Michael Simpson Diamond
- Medicare services, 2024
- 988
- Medicare patients, 2024
- 86
- Part D claims, 2024
- 108
- Hospital affiliations
- 1
- Industry payments
- $781
- Practice address
- 3643 N Roxboro Street, Durham, NC 27704
- Practice phone
- Call (919) 470-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Michael Simpson Diamond is an internist in Durham, North Carolina
Michael Diamond practices at Duke Regional Hospital in Durham, North Carolina, part of Duke University.
Michael Diamond's NPI, 1710144290, was assigned on May 21, 2008. Michael Diamond graduated from Brody School of Medicine at East Carolina University in 2008. Michael Diamond holds North Carolina license 2012-02039.
- NPI
- 1710144290NPI Registry (opens in a new tab)
- NPI enumeration date
- May 21, 2008
- NPI status
- Active
- Practice phone
- (919) 470-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Michael Simpson Diamond practices at Duke Regional Hospital in Durham, North Carolina
Michael Diamond's primary practice is Duke Regional Hospital, at 3643 N Roxboro Street, Durham, NC 27704 in Durham County. The practice phone is (919) 470-4000.
- Duke Regional Hospital3643 N Roxboro Street, Durham, NC 27704 · Durham CountyPhone(919) 470-4000
Source: Dmand AI Affiliation Data
Michael Simpson Diamond is affiliated with 1 site of care and 1 medical group
Michael Diamond's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University. The medical group on file is HNI Healthcare.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michael Simpson Diamond's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michael Diamond practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Duke Regional Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Michael Simpson Diamond is one of 3,705 internists in North Carolina
Internal medicine is Michael Diamond's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Michael Diamond is licensed in North Carolina.
Specialties and state licenses
- Internal medicine, North CarolinaPrimary
Internists near Michael Diamond
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
Michael Simpson Diamond billed Medicare for 988 services in 2024
CMS data shows 988 Medicare services from Michael Diamond across 4 procedure codes in 2024, for 86 Medicare patients. Medicare paid $73,366 for them. Every service was in a facility, such as a hospital, rather than an office.
Michael Diamond's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1152024: 98811%
Michael Diamond compared with the North Carolina median for internists, 2024
- Michael Diamond
- North Carolina median
- Medicare services
- 988vs 52190% above
- Medicare patients
- 86vs 18554% below
- Part D claims
- 126vs 27254% below
Medians across 3,695 internists in North Carolina with Dmand AI profiles that report each measure.
Michael Diamond'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Michael Simpson Diamond treated 86 Medicare patients in 2024, average age 71
CMS counts 86 Medicare patients who saw Michael Diamond in 2024. The largest group is 65 to 74, with 41 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 29% are also on Medicaid. Their average risk score is 3.10, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Michael Diamond's median patient age at 57, with 64% women.
Michael Diamond's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Michael Diamond's Medicare patients by sex, 2024
- Women4350%
- Men4350%
Chronic conditions among Michael Diamond's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes65%
- Chronic kidney disease59%
- Heart failure57%
- Arthritis55%
- Anxiety51%
- Ischemic heart disease49%
Share of Medicare patients with each condition. A patient can have several.
Michael Diamond's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women64%
- Men36%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Michael Simpson Diamond wrote 108 Medicare Part D claims in 2024
In 2024, Michael Diamond wrote 108 Medicare Part D claims for 29 patients. 59% of them were for generic drugs. They cover 8 drugs, with $14,559 in total drug cost. In 2022, CMS named 763 claims across 35 drugs.
Michael Diamond's Part D claims by kind of drug, 2024
- Generic64 claims59%
- Brand-name28 claims26%
- Other16 claims15%
Michael Diamond's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 7632023: 12683%
Drugs named by CMS: 8 in 2023, 35 in 2022.
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
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Michael Simpson Diamond received $781 in industry payments from 2016 to 2024
CMS Open Payments shows 36 general payments to Michael Diamond from 11 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 93% of the total. Janssen Pharmaceuticals, Inc paid the most, $306.
General payments to Michael Diamond by program year, 2016 to 2024
General payments to Michael Diamond by kind, 2016 to 2024
- Food and beverage$73093%
- Education$517%
Companies that paid Michael Diamond the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Michael Simpson Diamond graduated from Brody School of Medicine at East Carolina University
Michael Diamond graduated from Brody School of Medicine at East Carolina University in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Michael Simpson Diamond'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) |
| 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 Michael Simpson Diamond
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What is Michael Simpson Diamond's NPI number?
Michael Simpson Diamond's NPI number is 1710144290. It was assigned on May 21, 2008, and it is active in the NPI Registry.
What does Michael Simpson Diamond specialize in?
Michael Simpson Diamond is an internist in Durham, North Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Michael Simpson Diamond practice?
Michael Diamond practices at 3643 N Roxboro Street, Durham, NC 27704. Michael Diamond's primary practice is Duke Regional Hospital in Durham, North Carolina, part of Duke University.
What is Michael Simpson Diamond's office phone number?
The practice phone on file for Michael Diamond is (919) 470-4000.
What is Michael Simpson Diamond's medical license number?
Michael Diamond holds North Carolina license 2012-02039.
Which hospitals is Michael Simpson Diamond affiliated with?
Michael Diamond practices at Duke Regional Hospital in Durham, North Carolina.
What medical group is Michael Simpson Diamond part of?
Michael Diamond is linked to HNI Healthcare.
Does Michael Simpson Diamond accept Medicare?
Yes. CMS data shows Michael Diamond billed Medicare for 988 services in 2024.
How many Medicare patients does Michael Simpson Diamond see?
CMS counts 86 Medicare patients who saw Michael Diamond in 2024, with an average age of 71.
What services does Michael Simpson Diamond bill to Medicare?
In 2024, Michael Diamond's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
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Where did Michael Simpson Diamond go to medical school?
Michael Diamond graduated from Brody School of Medicine at East Carolina University in 2008.
What drugs does Michael Simpson Diamond prescribe most?
In 2023 Medicare Part D data, Michael Diamond's most prescribed drugs by claims were Gabapentin, Tradjenta and Pravastatin Sodium.
Has Michael Simpson Diamond received payments from drug or device companies?
CMS Open Payments shows $781 in general payments to Michael Diamond from 11 companies from 2016 to 2024. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Michael Simpson Diamond been practicing?
Michael Diamond graduated from medical school in 2008, 18 years ago.
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