Dr. Mark A. Dillingham, MD
- Medicare services, 2021
- 493
- Part D claims, 2022
- 93
- Industry payments
- $110
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 950 E Harvard Ave, Denver, CO 80210-7006
- Practice phone
- Call (303) 871-0977
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Denver Nephrology Associates
Medical specialty practice · Denver, Colorado
Find Dr. Dillingham'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. Mark A. Dillingham is a nephrologist in Denver, Colorado
Dr. Dillingham practices at South Denver Nephrology Associates in Denver, Colorado.
Dr. Dillingham's NPI, 1437142734, was assigned on August 23, 2005. Dr. Dillingham holds Colorado license 23200.
- NPI
- 1437142734NPI Registry (opens in a new tab)
- NPI enumeration date
- August 23, 2005
- NPI status
- Active
- Practice phone
- (303) 871-0977
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Dillingham practices at 2 locations in Denver, Colorado
Dr. Dillingham's primary practice is South Denver Nephrology Associates, at 950 E Harvard Ave, Denver, CO 80210-7006. The practice phone is (303) 871-0977. The NPI Registry lists Dr. Dillingham's practice address as 2525 S Downing St, Denver, CO 80210.
- South Denver Nephrology AssociatesPrimary950 E Harvard Ave, Denver, CO 80210-7006Phone(303) 871-0977
- NPI Registry address2525 S Downing St, Denver, CO 80210 · Denver CountyPhone(303) 871-0977
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Mark A. Dillingham is affiliated with 1 site of care and 1 medical group
Dr. Dillingham's primary practice is South Denver Nephrology Associates in Denver, Colorado. Dmand AI also links Dr. Dillingham to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Mark A. Dillingham's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dillingham practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Denver Nephrology Associates | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark A. Dillingham is one of 167 nephrologists in Colorado
Nephrology is Dr. Dillingham's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Dillingham is licensed in Colorado.
Specialties and state licenses
- Nephrology, ColoradoPrimary
Nephrologists near Dr. Dillingham
Counts of nephrologists 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. Mark A. Dillingham billed Medicare for 493 services in 2021
CMS data shows 493 Medicare services from Dr. Dillingham across 8 procedure codes in 2021. Medicare paid $47,889 for them.
Dr. Dillingham's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 8412021: 37555%
- Tests and treatments
- 2020: 3452021: 11866%
- Lab and pathology
- 2020: 392021: 0100%
Where Dr. Dillingham's Medicare services took place, 2021
- In an office16032%
- In a facility33368%
Dr. Dillingham compared with the Colorado median for nephrologists, 2021
- Dr. Dillingham
- Colorado median
- Medicare services
- 493vs 57715% below
- Part D claims
- 93vs 55083% below
Medians across 155 nephrologists in Colorado with Dmand AI profiles that report each measure.
Dr. Dillingham's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Dillingham?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dillingham and other nephrologists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Dillingham's patients have a median age of 80
Across all payers, Dmand AI patient panel data puts Dr. Dillingham's median patient age at 80, with 57% women.
Dr. Dillingham's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 80
Patient panel by sex, all payers
- Women57%
- Men43%
Source: Dmand AI Patient Panel Data
Dr. Mark A. Dillingham wrote 93 Medicare Part D claims in 2022
In 2022, Dr. Dillingham wrote 93 Medicare Part D claims. They cover 5 drugs, with $1,425 in total drug cost. In 2021, CMS named 531 claims across 20 drugs.
Dr. Dillingham's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 5312022: 9382%
Drugs named by CMS: 5 in 2022, 20 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mark A. Dillingham received $110 in industry payments from 2016 to 2020
CMS Open Payments shows 6 general payments to Dr. Dillingham from 5 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 69% of the total. AstraZeneca Pharmaceuticals LP paid the most, $36.
General payments to Dr. Dillingham by program year, 2016 to 2020
General payments to Dr. Dillingham by kind, 2016 to 2020
- Food and beverage$7769%
- Education$3431%
Companies that paid Dr. Dillingham the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark A. Dillingham'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) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark A. Dillingham
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. Mark A. Dillingham's NPI number?
Dr. Mark A. Dillingham's NPI number is 1437142734. It was assigned on August 23, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Dillingham?
Dr. Mark A. Dillingham is a nephrologist in Denver, Colorado. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Mark A. Dillingham practice?
Dr. Dillingham practices at 950 E Harvard Ave, Denver, CO 80210-7006. Dr. Dillingham also practices at 2525 S Downing St, Denver, CO 80210. Dr. Dillingham's primary practice is South Denver Nephrology Associates in Denver, Colorado. Dmand AI also links Dr. Dillingham to 1 medical group.
What is Dr. Mark A. Dillingham's office phone number?
The practice phone on file for Dr. Dillingham is (303) 871-0977.
What is Dr. Mark A. Dillingham's medical license number?
Dr. Dillingham holds Colorado license 23200.
Does Dr. Mark A. Dillingham accept Medicare?
Yes. CMS data shows Dr. Dillingham billed Medicare for 493 services in 2021.
What services does Dr. Mark A. Dillingham bill to Medicare?
In 2021, Dr. Dillingham's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and dialysis (90935).
What drugs does Dr. Mark A. Dillingham prescribe most?
In 2022 Medicare Part D data, Dr. Dillingham's most prescribed drugs by claims were Amlodipine Besylate, Losartan Potassium and Lisinopril.
Has Dr. Mark A. Dillingham received payments from drug or device companies?
CMS Open Payments shows $110 in general payments to Dr. Dillingham from 5 companies from 2016 to 2020. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mark A. Dillingham been practicing?
Dr. Dillingham's NPI was assigned in 2005.
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