Dr. Harrison David Lancaster, MD
- Part D claims, 2024
- 879
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lancaster's professional email, personal email and mobile number
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Dr. Harrison David Lancaster is an internist in Saint Louis, Missouri
Dr. Lancaster practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Lancaster's NPI, 1902541253, was assigned on May 2, 2022. Dr. Lancaster graduated from University of South Carolina School of Medicine, Greenville in 2022. Dr. Lancaster holds Missouri license 2025010768.
- NPI
- 1902541253NPI Registry (opens in a new tab)
- NPI enumeration date
- May 2, 2022
- NPI status
- Active
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Harrison David Lancaster practices at 2 locations in Saint Louis, Missouri
Dr. Lancaster's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. The NPI Registry lists Dr. Lancaster's practice address as 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- NPI Registry address1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Harrison David Lancaster is affiliated with 1 site of care and 1 medical group
Dr. Lancaster's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Harrison David Lancaster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lancaster practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Harrison David Lancaster is one of 2,114 internists in Missouri
Internal medicine is Dr. Lancaster's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lancaster is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Lancaster
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. Harrison David Lancaster's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Dr. Lancaster's median patient age at 49, with 100% women.
Dr. Lancaster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Harrison David Lancaster wrote 879 Medicare Part D claims in 2024
In 2024, Dr. Lancaster wrote 879 Medicare Part D claims for 83 patients. 82% of them were for generic drugs. CMS names the drug for 595 of them, across 24 drugs with 11 or more claims each, at $58,218 in total drug cost.
Dr. Lancaster's Part D claims by kind of drug, 2024
- Generic721 claims82%
- Brand-name116 claims13%
- Other42 claims5%
Dr. Lancaster'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. Lancaster's Part D claims, 2024
- Opioids2%18 of 879 claims
- Antibiotics1%11 of 879 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Harrison David Lancaster graduated from University of South Carolina School of Medicine, Greenville
Dr. Lancaster graduated from University of South Carolina School of Medicine, Greenville in 2022.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Harrison David Lancaster'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy 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) |
| 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. Harrison David Lancaster
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. Harrison David Lancaster's NPI number?
Dr. Harrison David Lancaster's NPI number is 1902541253. It was assigned on May 2, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Harrison David Lancaster?
Dr. Harrison David Lancaster is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Harrison David Lancaster practice?
Dr. Lancaster practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Lancaster also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Lancaster's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
What is Dr. Harrison David Lancaster's office phone number?
The practice phone on file for Dr. Lancaster is (314) 747-3000.
What is Dr. Harrison David Lancaster's medical license number?
Dr. Lancaster holds Missouri license 2025010768.
Which hospitals is Dr. Harrison David Lancaster affiliated with?
Dr. Lancaster practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Harrison David Lancaster part of?
Dr. Lancaster is linked to WashU Medicine Psychiatry.
Where did Dr. Harrison David Lancaster go to medical school?
Dr. Lancaster graduated from University of South Carolina School of Medicine, Greenville in 2022.
What drugs does Dr. Harrison David Lancaster prescribe most?
In 2024 Medicare Part D data, Dr. Lancaster's most prescribed drugs by claims were Lisinopril, Amlodipine Besylate and Atorvastatin Calcium.
How long has Dr. Harrison David Lancaster been practicing?
Dr. Lancaster graduated from medical school in 2022, 4 years ago.
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