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Dr. Andrew John Maclennan, MD
NPI1649430596PAC ID9032381835
- Medicare patients, 2024
- 13
- Part D claims, 2024
- 118
- Publications
- 1
- Hospital affiliations
- 2
- Industry payments
- $17
- Practice address
- 1719 E 19th Ave, Denver, CO 80218
- Practice phone
- Call (303) 839-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Maclennan'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. Andrew John Maclennan is a hospitalist in Denver, Colorado
Dr. Maclennan practices at HCA HealthONE Presbyterian St. Luke's in Denver, Colorado, part of HCA Healthcare.
Dr. Maclennan's NPI, 1649430596, was assigned on June 13, 2008. Dr. Maclennan graduated from Washington University School of Medicine in 2008. Dr. Maclennan holds Colorado license 49625.
NPI and contact details
- NPI
- 1649430596NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032381835
- NPI enumeration date
- June 13, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (303) 839-6000
- 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; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew John Maclennan practices at HCA HealthONE Presbyterian St. Luke's in Denver, Colorado
Dr. Maclennan's primary practice is HCA HealthONE Presbyterian St. Luke's, at 1719 E 19th Ave, Denver, CO 80218 in Denver County. The practice phone is (303) 839-6000.
- HCA HealthONE Presbyterian St. Luke's1719 E 19th Ave, Denver, CO 80218 · Denver CountyPhone(303) 839-6000
Source: Dmand AI Affiliation Data
Dr. Andrew John Maclennan is affiliated with 2 sites of care and 1 medical group
Dr. Maclennan's primary practice is HCA HealthONE Presbyterian St. Luke's in Denver, Colorado, part of HCA Healthcare. The medical group on file is Colorado Permanente Medical Group. Dmand AI also links Dr. Maclennan to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Andrew John Maclennan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maclennan practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA HealthONE Presbyterian St. Luke's | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew John Maclennan is one of 758 hospitalists in Colorado
Hospitalist is Dr. Maclennan's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Maclennan's licenses on file in 2 states: Colorado and North Carolina.
Specialties and state licenses
- Hospitalist, ColoradoPrimary
- Student in an organized health care education/training program, North Carolina
Hospitalists near Dr. Maclennan
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
758hospitalists in Colorado116hospitalists in Denver21hospitalists at HCA HealthONE Presbyterian St. Luke's
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Andrew John Maclennan treated 13 Medicare patients in 2024, average age 66
CMS counts 13 Medicare patients who saw Dr. Maclennan in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maclennan's median patient age at 67, with 55% women.
Medicare patients, 202413
Average age66
Average risk score1.31
Dr. Maclennan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maclennan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Andrew John Maclennan wrote 118 Medicare Part D claims in 2024
In 2024, Dr. Maclennan wrote 118 Medicare Part D claims for 49 patients. 75% of them were for generic drugs. CMS names the drug for 36 of them, across 3 drugs with 11 or more claims each, at $440 in total drug cost. In 2017, CMS named 30 claims across 2 drugs.
Part D claims, 2024118
Drugs named by CMS3
Total drug cost$440
Part D patients49
Dr. Maclennan's Part D claims by kind of drug, 2024
- Generic89 claims75%
- Brand-name and other29 claims25%
Dr. Maclennan's most prescribed drugs by claims, 2018
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. Maclennan's Part D claims, 2024
- Antibiotics14%17 of 118 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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 302018: 3620%
Drugs named by CMS: 3 in 2018, 2 in 2017.
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. Andrew John Maclennan takes part in Medicare
Dr. Maclennan 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. Andrew John Maclennan has 1 publication on record
Dmand AI links 1 paper to Dr. Maclennan. Dr. Maclennan's most frequent co-author is Hans H. Herfarth, MD.
Papers1
Dr. Maclennan's most frequent co-authors
Recent publications by Dr. Maclennan
See who Dr. Maclennan researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Maclennan works with, so you can find a warm path to the right hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Andrew John Maclennan received $17 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Maclennan from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $17.
Companies that paid Dr. Maclennan the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andrew John Maclennan graduated from Washington University School of Medicine
Dr. Maclennan graduated from Washington University School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew John Maclennan'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Andrew John Maclennan
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. Andrew John Maclennan's NPI number?
Dr. Andrew John Maclennan's NPI number is 1649430596. It was assigned on June 13, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew John Maclennan?
Dr. Andrew John Maclennan is a hospitalist in Denver, Colorado. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Andrew John Maclennan practice?
Dr. Maclennan practices at 1719 E 19th Ave, Denver, CO 80218. Dr. Maclennan's primary practice is HCA HealthONE Presbyterian St. Luke's in Denver, Colorado, part of HCA Healthcare. Dmand AI also links Dr. Maclennan to 1 hospital.
What is Dr. Andrew John Maclennan's office phone number?
The practice phone on file for Dr. Maclennan is (303) 839-6000.
What is Dr. Andrew John Maclennan's medical license number?
Dr. Maclennan holds Colorado license 49625, one of the licenses on file in 2 states.
Which states has Dr. Andrew John Maclennan been licensed in?
Dmand AI has state licenses on file for Dr. Maclennan in Colorado and North Carolina.
Which hospitals is Dr. Andrew John Maclennan affiliated with?
Dr. Maclennan practices at HCA HealthONE Presbyterian St. Luke's in Denver, Colorado. Dmand AI links Dr. Maclennan to 1 more hospital.
What medical group is Dr. Andrew John Maclennan part of?
Dr. Maclennan is linked to Colorado Permanente Medical Group.
Does Dr. Andrew John Maclennan accept Medicare?
Yes. CMS lists Dr. Maclennan as accepting Medicare assignment.
How many Medicare patients does Dr. Andrew John Maclennan see?
CMS counts 13 Medicare patients who saw Dr. Maclennan in 2024, with an average age of 66.
Show 6 more questionsShow fewer questions
Where did Dr. Andrew John Maclennan go to medical school?
Dr. Maclennan graduated from Washington University School of Medicine in 2008.
What drugs does Dr. Andrew John Maclennan prescribe most?
In 2018 Medicare Part D data, Dr. Maclennan's most prescribed drugs by claims were Cefuroxime, Furosemide and Levofloxacin.
Has Dr. Andrew John Maclennan received payments from drug or device companies?
CMS Open Payments shows $17 in general payments to Dr. Maclennan from 1 company from 2016 to 2016. The largest total came from Genentech, Inc.
How long has Dr. Andrew John Maclennan been practicing?
Dr. Maclennan graduated from medical school in 2008, 18 years ago.
Does Dr. Andrew John Maclennan do research?
Dmand AI links 1 publication to Dr. Maclennan.
Who does Dr. Andrew John Maclennan publish with?
Dr. Maclennan's most frequent co-authors are Hans H. Herfarth, MD (1 shared paper).
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