Dr. Gregory Lewis, MD
- Medicare services, 2023
- 53
- Part D claims, 2017
- 13
- Hospital affiliations
- 1
- Medical groups
- 6
- State license
- 1
- Practice address
- 401 Kendall Dr, Lamar, CO 81052
- Practice phone
- Call (719) 336-4343
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lewis' 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. Gregory Lewis is a family medicine physician in Lamar, Colorado
Dr. Lewis practices at Prowers Medical Center in Lamar, Colorado, part of Prowers Medical Center.
Dr. Lewis' NPI, 1053601302, was assigned on April 7, 2011. Dr. Lewis holds Oklahoma license 28635.
- NPI
- 1053601302NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082853080
- NPI enumeration date
- April 7, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (719) 336-4343
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory Lewis practices at Prowers Medical Center in Lamar, Colorado
Dr. Lewis' primary practice is Prowers Medical Center, at 401 Kendall Dr, Lamar, CO 81052 in Prowers County. The practice phone is (719) 336-4343.
- Prowers Medical Center401 Kendall Dr, Lamar, CO 81052 · Prowers CountyPhone(719) 336-4343
Source: Dmand AI Affiliation Data
Dr. Gregory Lewis is affiliated with 3 sites of care and 6 medical groups
Dr. Lewis' primary practice is Prowers Medical Center in Lamar, Colorado, part of Prowers Medical Center. The medical group on file is Prowers Medical Center. Dmand AI also links Dr. Lewis to 5 more medical groups, 1 group practice or clinic and 1 home health agency, each named with a free account. Dr. Lewis' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Lewis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lewis practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prowers Medical Center | Available with a free account |
| +2 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Prowers Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory Lewis is one of 2,952 family medicine physicians in Colorado
Family medicine is Dr. Lewis' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Lewis is licensed in Oklahoma.
Specialties and state licenses
- Family medicine, OklahomaPrimary
Family medicine physicians near Dr. Lewis
Counts of family medicine physicians 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 Lewis billed Medicare for 53 services in 2023
CMS data shows 53 Medicare services from Dr. Lewis across 2 procedure codes in 2023. Medicare paid $4,319 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lewis' Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 852023: 5338%
Dr. Lewis compared with the Colorado median for family medicine physicians, 2023
- Dr. Lewis
- Colorado median
- Medicare services
- 53vs 27281% below
- Part D claims
- 13vs 68098% below
Medians across 2,975 family medicine physicians in Colorado with Dmand AI profiles that report each measure.
Dr. Lewis' 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. Lewis and other family medicine physicians in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Lewis' patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Lewis' median patient age at 69, with 75% women.
Dr. Lewis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. Gregory Lewis wrote 13 Medicare Part D claims in 2017
In 2017, Dr. Lewis wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $391 in total drug cost. In 2016, CMS named 44 claims across 2 drugs.
Dr. Lewis' most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 442017: 1370%
Drugs named by CMS: 1 in 2017, 2 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Gregory Lewis takes part in Medicare
Dr. Lewis 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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Sources for Dr. Gregory Lewis'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 Lewis
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 Lewis' NPI number?
Dr. Gregory Lewis' NPI number is 1053601302. It was assigned on April 7, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Lewis?
Dr. Gregory Lewis is a family medicine physician in Lamar, Colorado. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Gregory Lewis practice?
Dr. Lewis practices at 401 Kendall Dr, Lamar, CO 81052. Dr. Lewis' primary practice is Prowers Medical Center in Lamar, Colorado, part of Prowers Medical Center. Dmand AI also links Dr. Lewis to 5 medical groups, 1 group practice or clinic and 1 home health agency.
What is Dr. Gregory Lewis' office phone number?
The practice phone on file for Dr. Lewis is (719) 336-4343.
What is Dr. Gregory Lewis' medical license number?
Dr. Lewis holds Oklahoma license 28635.
Which hospitals is Dr. Gregory Lewis affiliated with?
Dr. Lewis practices at Prowers Medical Center in Lamar, Colorado.
What medical group is Dr. Gregory Lewis part of?
Dr. Lewis is linked to Prowers Medical Center. Dmand AI links Dr. Lewis to 5 more medical groups.
Does Dr. Gregory Lewis accept Medicare?
Yes. CMS data shows Dr. Lewis billed Medicare for 53 services in 2023, and Dr. Lewis accepts Medicare assignment.
What services does Dr. Gregory Lewis bill to Medicare?
In 2023, Dr. Lewis' most billed Medicare services were nursing facility care (99309) and emergency department visit (99284).
What drugs does Dr. Gregory Lewis prescribe most?
In 2017 Medicare Part D data, Dr. Lewis' most prescribed drugs by claims were Duloxetine HCl.
How long has Dr. Gregory Lewis been practicing?
Dr. Lewis graduated from medical school in 2011, 15 years ago.
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