Dr. Gregory S. Schlessinger, MD
- Medicare services, 2024
- 230
- Medicare patients, 2024
- 107
- Part D claims, 2024
- 645
- Hospital affiliations
- 2
- Industry payments
- $3,693
- Practice address
- 10101 Ridgegate Pkwy, Lone Tree, CO 80124
- Practice phone
- Call (720) 225-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Schlessinger's professional email, personal email and mobile number
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Dr. Gregory S. Schlessinger is a nephrologist in Lone Tree, Colorado
Dr. Schlessinger practices at HCA HealthONE Sky Ridge in Lone Tree, Colorado, part of HCA Healthcare.
Dr. Schlessinger's NPI, 1255313441, was assigned on November 15, 2005. Dr. Schlessinger graduated from Vanderbilt University School of Medicine in 1993. Dr. Schlessinger holds Colorado license 37524.
- NPI
- 1255313441NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890749568
- NPI enumeration date
- November 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (720) 225-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory S. Schlessinger practices at HCA HealthONE Sky Ridge in Lone Tree, Colorado
Dr. Schlessinger's primary practice is HCA HealthONE Sky Ridge, at 10101 Ridgegate Pkwy, Lone Tree, CO 80124 in Douglas County. The practice phone is (720) 225-1000.
- HCA HealthONE Sky Ridge10101 Ridgegate Pkwy, Lone Tree, CO 80124 · Douglas CountyPhone(720) 225-1000
Source: Dmand AI Affiliation Data
Dr. Gregory S. Schlessinger is affiliated with 8 sites of care and 5 medical groups
Dr. Schlessinger's primary practice is HCA HealthONE Sky Ridge in Lone Tree, Colorado, part of HCA Healthcare. Dr. Schlessinger is also affiliated with HCA HealthONE Aurora. The medical group on file is Rocky Mountain Kidney Care. Dmand AI also links Dr. Schlessinger to 4 more medical groups, 3 dialysis centers and 3 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory S. Schlessinger's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schlessinger practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA HealthONE Sky Ridge | Available with a free account |
| +7 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory S. Schlessinger is one of 167 nephrologists in Colorado
Nephrology is Dr. Schlessinger's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dmand AI has Dr. Schlessinger's licenses on file in 2 states: Colorado and Wyoming.
Specialties and state licenses
- Nephrology, ColoradoPrimary
- Wyoming license
Nephrologists near Dr. Schlessinger
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. Gregory S. Schlessinger billed Medicare for 230 services in 2024
CMS data shows 230 Medicare services from Dr. Schlessinger across 7 procedure codes in 2024, for 107 Medicare patients. Medicare paid $18,588 for them.
Dr. Schlessinger's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2312024: 12247%
- Other services
- 2023: 02024: 60
- Tests and treatments
- 2023: 1392024: 4865%
Where Dr. Schlessinger's Medicare services took place, 2024
- In an office20388%
- In a facility2712%
Dr. Schlessinger compared with the Colorado median for nephrologists, 2024
- Dr. Schlessinger
- Colorado median
- Medicare services
- 230vs 57760% below
- Medicare patients
- 107vs 21250% below
- Part D claims
- 457vs 55017% below
Medians across 155 nephrologists in Colorado with Dmand AI profiles that report each measure.
Dr. Schlessinger's most billed Medicare procedure codes, 2024
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. Schlessinger?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schlessinger and other nephrologists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory S. Schlessinger treated 107 Medicare patients in 2024, average age 73
CMS counts 107 Medicare patients who saw Dr. Schlessinger in 2024. The largest group is 75 to 84, with 43 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. Their average risk score is 3.87, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Schlessinger's median patient age at 73, with 41% women.
Dr. Schlessinger's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Schlessinger's Medicare patients by sex, 2024
- Women5350%
- Men5450%
Chronic conditions among Dr. Schlessinger's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Ischemic heart disease45%
- Heart failure44%
- Arthritis43%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Dr. Schlessinger's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory S. Schlessinger wrote 645 Medicare Part D claims in 2024
In 2024, Dr. Schlessinger wrote 645 Medicare Part D claims for 104 patients. 78% of them were for generic drugs. CMS names the drug for 457 of them, across 14 drugs with 11 or more claims each, at $112,354 in total drug cost. In 2023, CMS named 499 claims across 14 drugs.
Dr. Schlessinger's Part D claims by kind of drug, 2024
- Generic502 claims78%
- Brand-name143 claims22%
Dr. Schlessinger'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4992024: 4578%
Drugs named by CMS: 14 in 2024, 14 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
Dr. Gregory S. Schlessinger offers telehealth to Medicare patients
Dr. Schlessinger accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Schlessinger as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Gregory S. Schlessinger received $3,693 in industry payments from 2018 to 2025
CMS Open Payments shows 86 general payments to Dr. Schlessinger from 21 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 70% of the total. Medtronic, Inc. paid the most, $1,080.
General payments to Dr. Schlessinger by program year, 2018 to 2025
General payments to Dr. Schlessinger by kind, 2018 to 2025
- Food and beverage$2,59670%
- Consulting fees$1,08029%
- Education$170%
Companies that paid Dr. Schlessinger the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory S. Schlessinger graduated from Vanderbilt University School of Medicine
Dr. Schlessinger graduated from Vanderbilt University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory S. Schlessinger'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 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 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) |
| 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. Gregory S. Schlessinger
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. Gregory S. Schlessinger's NPI number?
Dr. Gregory S. Schlessinger's NPI number is 1255313441. It was assigned on November 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory S. Schlessinger?
Dr. Gregory S. Schlessinger is a nephrologist in Lone Tree, Colorado. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Gregory S. Schlessinger practice?
Dr. Schlessinger practices at 10101 Ridgegate Pkwy, Lone Tree, CO 80124. Dr. Schlessinger's primary practice is HCA HealthONE Sky Ridge in Lone Tree, Colorado, part of HCA Healthcare. Dmand AI also links Dr. Schlessinger to 4 medical groups, 3 dialysis centers and 3 group practices and clinics.
What is Dr. Gregory S. Schlessinger's office phone number?
The practice phone on file for Dr. Schlessinger is (720) 225-1000.
What is Dr. Gregory S. Schlessinger's medical license number?
Dr. Schlessinger holds Colorado license 37524, one of the licenses on file in 2 states.
Which states has Dr. Gregory S. Schlessinger been licensed in?
Dmand AI has state licenses on file for Dr. Schlessinger in Colorado and Wyoming.
Which hospitals is Dr. Gregory S. Schlessinger affiliated with?
Dr. Schlessinger practices at HCA HealthONE Sky Ridge in Lone Tree, Colorado. Dr. Schlessinger is also affiliated with HCA HealthONE Aurora.
What medical group is Dr. Gregory S. Schlessinger part of?
Dr. Schlessinger is linked to Rocky Mountain Kidney Care. Dmand AI links Dr. Schlessinger to 4 more medical groups.
Does Dr. Gregory S. Schlessinger accept Medicare?
Yes. CMS data shows Dr. Schlessinger billed Medicare for 230 services in 2024, and Dr. Schlessinger accepts Medicare assignment.
Does Dr. Gregory S. Schlessinger offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Schlessinger as offering telehealth services.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. Gregory S. Schlessinger see?
CMS counts 107 Medicare patients who saw Dr. Schlessinger in 2024, with an average age of 73.
What services does Dr. Gregory S. Schlessinger bill to Medicare?
In 2024, Dr. Schlessinger's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and dialysis (90960).
Where did Dr. Gregory S. Schlessinger go to medical school?
Dr. Schlessinger graduated from Vanderbilt University School of Medicine in 1993.
What drugs does Dr. Gregory S. Schlessinger prescribe most?
In 2024 Medicare Part D data, Dr. Schlessinger's most prescribed drugs by claims were Losartan Potassium, Furosemide and Cinacalcet HCl.
Has Dr. Gregory S. Schlessinger received payments from drug or device companies?
CMS Open Payments shows $3,693 in general payments to Dr. Schlessinger from 21 companies from 2018 to 2025. The largest total came from Medtronic, Inc.
How long has Dr. Gregory S. Schlessinger been practicing?
Dr. Schlessinger graduated from medical school in 1993, 33 years ago.
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