Dr. Gregson J. Porteous, DO
- Medicare services, 2024
- 67
- Medicare patients, 2024
- 76
- Hospital affiliations
- 1
- Industry payments
- $163
- Medical group
- 1
- Practice address
- 100 N Green Valley Pkwy, Henderson, NV 89074
- Practice phone
- Call (702) 436-7700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Genesis Medical Group Parkway Urgent Care
Urgent Care Center · Henderson, Nevada
Find Dr. Porteous' 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. Gregson J. Porteous is an anesthesiologist in Henderson, Nevada
Dr. Porteous practices at Genesis Medical Group Parkway Urgent Care in Henderson, Nevada.
Dr. Porteous' NPI, 1194701086, was assigned on December 21, 2005. Dr. Porteous graduated from College of Osteo Med of the Pacific at Pomona in 1989. Dr. Porteous holds Nevada license 655.
- NPI
- 1194701086NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719072107
- NPI enumeration date
- December 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (702) 436-7700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregson J. Porteous practices at Genesis Medical Group Parkway Urgent Care in Henderson, Nevada
Dr. Porteous' primary practice is Genesis Medical Group Parkway Urgent Care, at 100 N Green Valley Pkwy, Henderson, NV 89074. The practice phone is (702) 436-7700.
- Genesis Medical Group Parkway Urgent Care100 N Green Valley Pkwy, Henderson, NV 89074Phone(702) 436-7700
Source: Dmand AI Affiliation Data
Dr. Gregson J. Porteous is affiliated with 4 sites of care and 1 medical group
Dr. Porteous' primary practice is Genesis Medical Group Parkway Urgent Care in Henderson, Nevada. Dr. Porteous is also affiliated with Henderson Hospital. The medical group on file is PBS Anesthesia. Dmand AI also links Dr. Porteous to 1 more group practice or clinic and 1 ambulatory surgery center, 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. Gregson J. Porteous' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Porteous practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Genesis Medical Group Parkway Urgent Care | Available with a free account |
| +3 more affiliated sites | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregson J. Porteous is one of 455 anesthesiologists in Nevada
Anesthesiology is Dr. Porteous' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Porteous is licensed in Nevada.
Specialties and state licenses
- Anesthesiology, NevadaPrimary
Anesthesiologists near Dr. Porteous
Counts of anesthesiologists 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. Gregson J. Porteous billed Medicare for 67 services in 2024
CMS data shows 67 Medicare services from Dr. Porteous across 3 procedure codes in 2024, for 76 Medicare patients. Medicare paid $6,503 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Porteous' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1152024: 6742%
Dr. Porteous compared with the Nevada median for anesthesiologists, 2024
- Dr. Porteous
- Nevada median
- Medicare services
- 67vs 738% below
- Medicare patients
- 76vs 13242% below
Medians across 423 anesthesiologists in Nevada with Dmand AI profiles that report each measure.
Dr. Porteous' 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. Porteous?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Porteous and other anesthesiologists in Nevada.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregson J. Porteous treated 76 Medicare patients in 2024, average age 72
CMS counts 76 Medicare patients who saw Dr. Porteous in 2024. The largest group is 65 to 74, with 47 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Porteous' median patient age at 59, with 56% women.
Dr. Porteous' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Porteous' Medicare patients by sex, 2024
- Women3546%
- Men4154%
Chronic conditions among Dr. Porteous' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes41%
- Ischemic heart disease30%
- Anxiety17%
- Chronic kidney disease17%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Porteous' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Gregson J. Porteous takes part in Medicare
Dr. Porteous 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gregson J. Porteous received $163 in industry payments from 2016 to 2020
CMS Open Payments shows 3 general payments to Dr. Porteous from 3 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $122.
General payments to Dr. Porteous by program year, 2016 to 2020
Companies that paid Dr. Porteous the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregson J. Porteous graduated from College of Osteo Med of the Pacific at Pomona
Dr. Porteous graduated from College of Osteo Med of the Pacific at Pomona in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregson J. Porteous'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) |
| 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. Gregson J. Porteous
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. Gregson J. Porteous' NPI number?
Dr. Gregson J. Porteous' NPI number is 1194701086. It was assigned on December 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregson J. Porteous?
Dr. Gregson J. Porteous is an anesthesiologist in Henderson, Nevada. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Gregson J. Porteous practice?
Dr. Porteous practices at 100 N Green Valley Pkwy, Henderson, NV 89074. Dr. Porteous' primary practice is Genesis Medical Group Parkway Urgent Care in Henderson, Nevada. Dmand AI also links Dr. Porteous to 1 group practice or clinic and 1 ambulatory surgery center.
What is Dr. Gregson J. Porteous' office phone number?
The practice phone on file for Dr. Porteous is (702) 436-7700.
What is Dr. Gregson J. Porteous' medical license number?
Dr. Porteous holds Nevada license 655.
Which hospitals is Dr. Gregson J. Porteous affiliated with?
Dr. Porteous is affiliated with Henderson Hospital.
What medical group is Dr. Gregson J. Porteous part of?
Dr. Porteous is linked to PBS Anesthesia.
Does Dr. Gregson J. Porteous accept Medicare?
Yes. CMS data shows Dr. Porteous billed Medicare for 67 services in 2024, and Dr. Porteous accepts Medicare assignment.
How many Medicare patients does Dr. Gregson J. Porteous see?
CMS counts 76 Medicare patients who saw Dr. Porteous in 2024, with an average age of 72.
What services does Dr. Gregson J. Porteous bill to Medicare?
In 2024, Dr. Porteous' most billed Medicare services were anesthesia (00811), anesthesia (00731) and anesthesia (00812).
Show 3 more questionsShow fewer questions
Where did Dr. Gregson J. Porteous go to medical school?
Dr. Porteous graduated from College of Osteo Med of the Pacific at Pomona in 1989.
Has Dr. Gregson J. Porteous received payments from drug or device companies?
CMS Open Payments shows $163 in general payments to Dr. Porteous from 3 companies from 2016 to 2020. The largest total came from Boston Scientific Corporation.
How long has Dr. Gregson J. Porteous been practicing?
Dr. Porteous graduated from medical school in 1989, 37 years ago.
Selling to anesthesiology practices?
See anesthesiologists in Nevada by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card