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Dr. Barbara E. Johnston, MD
NPI1003908344
- Medicare services, 2023
- 88
- Part D claims, 2024
- 431
- Publications
- 14
- Industry payments
- $1,517
- Affiliated sites
- 2
- Practice address
- 555 Prospect Ave, Estes Park, CO 80517
- Practice phone
- Call (970) 586-2317
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCH Estes Park Medical Center
Estes Park, Colorado
Find Dr. Johnston'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. Barbara E. Johnston is an internist in Estes Park, Colorado
Dr. Johnston practices at UCH Estes Park Medical Center in Estes Park, Colorado.
Dr. Johnston's NPI, 1003908344, was assigned on September 28, 2006. Dr. Johnston graduated from University of North Carolina at Chapel Hill School of Medicine in 1983. Dr. Johnston holds Colorado license DR.0067634.
NPI and contact details
- NPI
- 1003908344NPI Registry (opens in a new tab)
- NPI enumeration date
- September 28, 2006
- NPI status
- Active
- Practice phone
- (970) 586-2317
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Barbara E. Johnston practices at UCH Estes Park Medical Center in Estes Park, Colorado
Dr. Johnston's primary practice is UCH Estes Park Medical Center, at 555 Prospect Ave, Estes Park, CO 80517 in Larimer County. The practice phone is (970) 586-2317.
- UCH Estes Park Medical Center555 Prospect Ave, Estes Park, CO 80517 · Larimer CountyPhone(970) 586-2317
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Barbara E. Johnston is affiliated with 3 sites of care and 3 medical groups
Dr. Johnston's primary practice is UCH Estes Park Medical Center in Estes Park, Colorado. The medical group on file is UCHealth Medical Group. Dmand AI also links Dr. Johnston to 2 more group practices and clinics and 2 medical groups, each named with a free account.
UCH Estes Park Medical CenterPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Barbara E. Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCH Estes Park Medical Center | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Barbara E. Johnston is one of 1,668 internists in Colorado
Internal medicine is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Johnston's licenses on file in 2 states: Colorado and New York.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
- New York license
Internists near Dr. Johnston
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
1,668internists in Colorado
4internists in Estes Park
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Barbara E. Johnston billed Medicare for 88 services in 2023
CMS data shows 88 Medicare services from Dr. Johnston across 2 procedure codes in 2023, all of them office visits. Medicare paid $2,281 for them. Every service was in an office.
Medicare services, 202388
Paid by Medicare$2,281
Procedure codes2
Dr. Johnston's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1532023: 8842%
- Tests and treatments
- 2022: 112023: 0100%
- Other services
- 2022: 242023: 0100%
Dr. Johnston compared with the Colorado median for internists, 2023
- Dr. Johnston
- Colorado median
- Medicare services
- 88vs 37777% below
- Part D claims
- 87vs 31873% below
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Johnston's most billed Medicare procedure codes, 2023
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. Johnston and other internists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Barbara E. Johnston's patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 74, with 55% women.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women55%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Barbara E. Johnston wrote 431 Medicare Part D claims in 2024
In 2024, Dr. Johnston wrote 431 Medicare Part D claims for 188 patients. 90% of them were for generic drugs. CMS names the drug for 87 of them, across 5 drugs with 11 or more claims each, at $557 in total drug cost. In 2023, CMS named 169 claims across 9 drugs.
Part D claims, 2024431
Drugs named by CMS5
Total drug cost$557
Part D patients188
Dr. Johnston's Part D claims by kind of drug, 2024
- Generic386 claims90%
- Brand-name45 claims10%
Dr. Johnston'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. Johnston's Part D claims, 2024
- Opioids4%17 of 431 claims
- Antibiotics8%34 of 431 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1692024: 8749%
Drugs named by CMS: 5 in 2024, 9 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
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Dr. Barbara E. Johnston has 14 publications on record
Dmand AI links 14 papers to Dr. Johnston, published from 2012 to 2024. The most frequent topics are HIV Infections, Homosexuality, Male and Primary Health Care. Dr. Johnston has published most often in Sex Transm Dis. Dr. Johnston's most frequent co-authors are Stephen E. Follansbee, MD, Karen Hoover, MD, MPH and David M. Aboulafia, MD.
Papers14
Years published2012 to 2024
Dr. Johnston's papers by year, 2012 to 2024
Topics Dr. Johnston writes about most
- HIV Infections
- Homosexuality, Male
- Primary Health Care
- Hispanic or Latino
- North Carolina
- Pre-Exposure Prophylaxis
- Alcohol Drinking
- Ambulatory Care Facilities
Dr. Johnston's most frequent co-authors
- Stephen E. Follansbee, MD2 shared papers
- Karen Hoover, MD, MPH2 shared papers
- David M. Aboulafia, MD1 shared paper
Recent publications by Dr. Johnston
AIDS Patient Care STDS
Anti-HIV AgentsBlack or African AmericanBlack People
Telemed J E Health
Cultural CompetencyEvidence-Based PracticeProfessional-Patient Relations
Acquired Immunodeficiency SyndromeCounselingCulture
Alcohol DrinkingHIV InfectionsMotivational Interviewing
See who Dr. Johnston researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Johnston works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Barbara E. Johnston received $1,517 in industry payments from 2016 to 2021
CMS Open Payments shows 62 general payments to Dr. Johnston from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 87% of the total. Gilead Sciences, Inc. paid the most, $708.
General payments to Dr. Johnston by program year, 2016 to 2021
General payments to Dr. Johnston by kind, 2016 to 2021
$1.5Kin total
- Food and beverage$1,31887%
- Education$19913%
Companies that paid Dr. Johnston the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Barbara E. Johnston graduated from University of North Carolina at Chapel Hill School of Medicine
Dr. Johnston graduated from University of North Carolina at Chapel Hill School of Medicine in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Barbara E. Johnston'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 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 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) |
| 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. Barbara E. Johnston
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. Barbara E. Johnston's NPI number?
Dr. Barbara E. Johnston's NPI number is 1003908344. It was assigned on September 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Barbara E. Johnston?
Dr. Barbara E. Johnston is an internist in Estes Park, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Barbara E. Johnston practice?
Dr. Johnston practices at 555 Prospect Ave, Estes Park, CO 80517. Dr. Johnston's primary practice is UCH Estes Park Medical Center in Estes Park, Colorado. Dmand AI also links Dr. Johnston to 2 group practices and clinics and 2 medical groups.
What is Dr. Barbara E. Johnston's office phone number?
The practice phone on file for Dr. Johnston is (970) 586-2317.
What is Dr. Barbara E. Johnston's medical license number?
Dr. Johnston holds Colorado license DR.0067634, one of the licenses on file in 2 states.
Which states has Dr. Barbara E. Johnston been licensed in?
Dmand AI has state licenses on file for Dr. Johnston in Colorado and New York.
What medical group is Dr. Barbara E. Johnston part of?
Dr. Johnston is linked to UCHealth Medical Group. Dmand AI links Dr. Johnston to 2 more medical groups.
Does Dr. Barbara E. Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 88 services in 2023.
What services does Dr. Barbara E. Johnston bill to Medicare?
In 2023, Dr. Johnston's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Barbara E. Johnston go to medical school?
Dr. Johnston graduated from University of North Carolina at Chapel Hill School of Medicine in 1983.
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What drugs does Dr. Barbara E. Johnston prescribe most?
In 2024 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Amlodipine Besylate, Levothyroxine Sodium and Omeprazole.
Has Dr. Barbara E. Johnston received payments from drug or device companies?
CMS Open Payments shows $1,517 in general payments to Dr. Johnston from 6 companies from 2016 to 2021. The largest total came from Gilead Sciences, Inc.
How long has Dr. Barbara E. Johnston been practicing?
Dr. Johnston graduated from medical school in 1983, 43 years ago.
Does Dr. Barbara E. Johnston do research?
Dmand AI links 14 publications to Dr. Johnston, published from 2012 to 2024.
Who does Dr. Barbara E. Johnston publish with?
Dr. Johnston's most frequent co-authors are Stephen E. Follansbee, MD (2 shared papers), Karen Hoover, MD, MPH (2 shared papers) and David M. Aboulafia, MD (1 shared paper).
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