Dr. Christopher James Diaz, MD
- Part D claims, 2024
- 215
- Hospital affiliations
- 1
- Industry payments
- $13
- Medical groups
- 2
- State license
- 1
- Practice address
- 600 N Wolfe St, Baltimore, MD 21287
- Practice phone
- Call (855) 662-3017
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Johns Hopkins Hospital Nelson/Harvey Building
Baltimore, Maryland
Find Dr. Diaz'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. Christopher James Diaz is an internist in Baltimore, Maryland
Dr. Diaz practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland.
Dr. Diaz's NPI, 1912586322, was assigned on April 4, 2021. Dr. Diaz graduated from Ohio State University College of Medicine in 2021. Dr. Diaz holds Maryland license D0103969.
- NPI
- 1912586322NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931611621
- NPI enumeration date
- April 4, 2021
- NPI status
- Active
- Practice phone
- (855) 662-3017
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Christopher James Diaz practices at Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland
Dr. Diaz's primary practice is Johns Hopkins Hospital Nelson/Harvey Building, at 600 N Wolfe St, Baltimore, MD 21287 in Baltimore City. The practice phone is (855) 662-3017.
- Johns Hopkins Hospital Nelson/Harvey Building600 N Wolfe St, Baltimore, MD 21287 · Baltimore CityPhone(855) 662-3017
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christopher James Diaz is affiliated with 3 sites of care and 2 medical groups
Dr. Diaz's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dr. Diaz is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Diaz to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christopher James Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Johns Hopkins Hospital Nelson/Harvey Building | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher James Diaz is one of 3,320 internists in Maryland
Internal medicine is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Diaz is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Diaz
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. Christopher James Diaz's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 72, with 49% women.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women49%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Christopher James Diaz wrote 215 Medicare Part D claims in 2024
In 2024, Dr. Diaz wrote 215 Medicare Part D claims for 65 patients. 78% of them were for generic drugs. CMS names the drug for 53 of them, across 4 drugs with 11 or more claims each, at $507 in total drug cost.
Dr. Diaz's Part D claims by kind of drug, 2024
- Generic168 claims78%
- Brand-name36 claims17%
- Other11 claims5%
Dr. Diaz'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.
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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Dr. Christopher James Diaz received $13 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Diaz from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alnylam Pharmaceuticals Inc. paid the most, $13.
Companies that paid Dr. Diaz the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher James Diaz graduated from Ohio State University College of Medicine
Dr. Diaz graduated from Ohio State University College of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Christopher James Diaz'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Dr. Christopher James Diaz
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. Christopher James Diaz's NPI number?
Dr. Christopher James Diaz's NPI number is 1912586322. It was assigned on April 4, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher James Diaz?
Dr. Christopher James Diaz is an internist in Baltimore, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Christopher James Diaz practice?
Dr. Diaz practices at 600 N Wolfe St, Baltimore, MD 21287. Dr. Diaz's primary practice is Johns Hopkins Hospital Nelson/Harvey Building in Baltimore, Maryland. Dmand AI also links Dr. Diaz to 1 group practice or clinic and 1 medical group.
What is Dr. Christopher James Diaz's office phone number?
The practice phone on file for Dr. Diaz is (855) 662-3017.
What is Dr. Christopher James Diaz's medical license number?
Dr. Diaz holds Maryland license D0103969, one of 2 state licenses on file.
Which hospitals is Dr. Christopher James Diaz affiliated with?
Dr. Diaz is affiliated with The Johns Hopkins Hospital.
What medical group is Dr. Christopher James Diaz part of?
Dr. Diaz is linked to Johns Hopkins University. Dmand AI links Dr. Diaz to 1 more medical group.
Where did Dr. Christopher James Diaz go to medical school?
Dr. Diaz graduated from Ohio State University College of Medicine in 2021.
What drugs does Dr. Christopher James Diaz prescribe most?
In 2024 Medicare Part D data, Dr. Diaz's most prescribed drugs by claims were Lisinopril, Atorvastatin Calcium and Albuterol Sulfate Hfa.
Has Dr. Christopher James Diaz received payments from drug or device companies?
CMS Open Payments shows $13 in general payments to Dr. Diaz from 1 company from 2025 to 2025. The largest total came from Alnylam Pharmaceuticals Inc.
How long has Dr. Christopher James Diaz been practicing?
Dr. Diaz graduated from medical school in 2021, 5 years ago.
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