Dr. Edwin Charles Chapman Sr., MD
- Medicare services, 2024
- 576
- Medicare patients, 2024
- 76
- Part D claims, 2024
- 2,489
- Hospital affiliations
- 1
- Industry payments
- $17,547
- Practice address
- 1647 Benning Rd Ne, Washington, DC 20002-4569
- Practice phone
- Call (202) 396-8550
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Edwin C. Chapman, MD
Physician office · Washington, District of Columbia
Find Dr. Chapman's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Edwin Charles Chapman Sr. is an internist in Washington, District of Columbia
Dr. Chapman practices at Edwin C. Chapman, MD in Washington, District of Columbia.
Dr. Chapman's NPI, 1841303880, was assigned on August 16, 2006. Dr. Chapman graduated from Howard University College of Medicine in 1973. Dr. Chapman holds District of Columbia license 10544.
- NPI
- 1841303880NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204093180
- NPI enumeration date
- August 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (202) 396-8550
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Edwin Charles Chapman Sr. practices at Edwin C. Chapman, MD in Washington, District of Columbia
Dr. Chapman's primary practice is Edwin C. Chapman, MD, at 1647 Benning Rd Ne, Washington, DC 20002-4569. The practice phone is (202) 396-8550.
- Edwin C. Chapman, MD1647 Benning Rd Ne, Washington, DC 20002-4569Phone(202) 396-8550
Source: Dmand AI Affiliation Data
Dr. Edwin Charles Chapman Sr. is affiliated with 4 sites of care and 2 medical groups
Dr. Chapman's primary practice is Edwin C. Chapman, MD in Washington, District of Columbia. Dr. Chapman is also affiliated with MedStar Washington Hospital Center. The medical group on file is Medical Home Development Group. Dmand AI also links Dr. Chapman to 2 more group practices and clinics and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Edwin Charles Chapman Sr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chapman practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edwin C. Chapman, MD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Edwin Charles Chapman Sr. is one of 660 internists in District of Columbia
Internal medicine is Dr. Chapman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Chapman is licensed in District of Columbia.
Specialties and state licenses
- Internal medicine, District of ColumbiaPrimary
Internists near Dr. Chapman
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. Edwin Charles Chapman Sr. billed Medicare for 576 services in 2024
CMS data shows 576 Medicare services from Dr. Chapman across 3 procedure codes in 2024, for 76 Medicare patients. Medicare paid $65,215 for them. Every service was in an office.
Dr. Chapman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6582024: 56414%
- Other services
- 2023: 302024: 1260%
Dr. Chapman compared with the District of Columbia median for internists, 2024
- Dr. Chapman
- District of Columbia median
- Medicare services
- 576vs 35463% above
- Medicare patients
- 76vs 15350% below
- Part D claims
- 2,207vs 11020.1 times
Medians across 591 internists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Chapman'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. Chapman and other internists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Edwin Charles Chapman Sr. treated 76 Medicare patients in 2024, average age 73
CMS counts 76 Medicare patients who saw Dr. Chapman in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 53% are also on Medicaid. Their average risk score is 1.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chapman's median patient age at 65, with 54% women.
Dr. Chapman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chapman's Medicare patients by sex, 2024
- Women3951%
- Men3749%
Chronic conditions among Dr. Chapman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Diabetes53%
- Tobacco use53%
- Alcohol and drug use disorders49%
- Mood disorders37%
- Arthritis28%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chapman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women54%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Edwin Charles Chapman Sr. wrote 2,489 Medicare Part D claims in 2024
In 2024, Dr. Chapman wrote 2,489 Medicare Part D claims for 162 patients. CMS names the drug for 2,207 of them, across 23 drugs with 11 or more claims each, at $900,265 in total drug cost. In 2023, CMS named 2,105 claims across 21 drugs.
Dr. Chapman'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1052024: 2,2075%
Drugs named by CMS: 23 in 2024, 21 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
How Dr. Edwin Charles Chapman Sr. takes part in Medicare
Dr. Chapman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Edwin Charles Chapman Sr. received $17,547 in industry payments from 2016 to 2025
CMS Open Payments shows 132 general payments to Dr. Chapman from 25 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 72% of the total. Braeburn Inc. paid the most, $15,536.
General payments to Dr. Chapman by program year, 2016 to 2025
General payments to Dr. Chapman by kind, 2016 to 2025
- Honoraria$12,62372%
- Food and beverage$2,88016%
- Travel and lodging$2,04412%
Companies that paid Dr. Chapman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Edwin Charles Chapman Sr. graduated from Howard University College of Medicine
Dr. Chapman graduated from Howard University College of Medicine in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Edwin Charles Chapman Sr.'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. Edwin Charles Chapman Sr.
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. Edwin Charles Chapman Sr.'s NPI number?
Dr. Edwin Charles Chapman Sr.'s NPI number is 1841303880. It was assigned on August 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Edwin Charles Chapman Sr.?
Dr. Edwin Charles Chapman Sr. is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Edwin Charles Chapman Sr. practice?
Dr. Chapman practices at 1647 Benning Rd Ne, Washington, DC 20002-4569. Dr. Chapman's primary practice is Edwin C. Chapman, MD in Washington, District of Columbia. Dmand AI also links Dr. Chapman to 2 group practices and clinics and 1 medical group.
What is Dr. Edwin Charles Chapman Sr.'s office phone number?
The practice phone on file for Dr. Chapman is (202) 396-8550.
What is Dr. Edwin Charles Chapman Sr.'s medical license number?
Dr. Chapman holds District of Columbia license 10544.
Which hospitals is Dr. Edwin Charles Chapman Sr. affiliated with?
Dr. Chapman is affiliated with MedStar Washington Hospital Center.
What medical group is Dr. Edwin Charles Chapman Sr. part of?
Dr. Chapman is linked to Medical Home Development Group. Dmand AI links Dr. Chapman to 1 more medical group.
Does Dr. Edwin Charles Chapman Sr. accept Medicare?
Yes. CMS data shows Dr. Chapman billed Medicare for 576 services in 2024, and Dr. Chapman accepts Medicare assignment.
How many Medicare patients does Dr. Edwin Charles Chapman Sr. see?
CMS counts 76 Medicare patients who saw Dr. Chapman in 2024, with an average age of 73.
What services does Dr. Edwin Charles Chapman Sr. bill to Medicare?
In 2024, Dr. Chapman's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and medicare service (G0008).
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Where did Dr. Edwin Charles Chapman Sr. go to medical school?
Dr. Chapman graduated from Howard University College of Medicine in 1973.
What drugs does Dr. Edwin Charles Chapman Sr. prescribe most?
In 2024 Medicare Part D data, Dr. Chapman's most prescribed drugs by claims were Suboxone, Buprenorphine-Naloxone and Atorvastatin Calcium.
Has Dr. Edwin Charles Chapman Sr. received payments from drug or device companies?
CMS Open Payments shows $17,547 in general payments to Dr. Chapman from 25 companies from 2016 to 2025. The largest total came from Braeburn Inc.
How long has Dr. Edwin Charles Chapman Sr. been practicing?
Dr. Chapman graduated from medical school in 1973, 53 years ago.
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