Dr. Erik Ray Nelson, DO
- Medicare services, 2024
- 456
- Medicare patients, 2024
- 171
- Part D claims, 2024
- 221
- Hospital affiliations
- 1
- Industry payments
- $615
- Practice address
- 23900 Katy Freeway, Katy, TX 77494
- Practice phone
- Call (281) 392-1111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nelson'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. Erik Ray Nelson is a hospitalist in Katy, Texas
Dr. Nelson practices at Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System.
Dr. Nelson's NPI, 1609287697, was assigned on May 13, 2014. Dr. Nelson graduated from Touro University Nevada in 2014. Dr. Nelson holds Texas license R8439.
- NPI
- 1609287697NPI Registry (opens in a new tab)
- NPI enumeration date
- May 13, 2014
- NPI status
- Active
- Practice phone
- (281) 392-1111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Erik Ray Nelson practices at Memorial Hermann Katy Hospital in Katy, Texas
Dr. Nelson's primary practice is Memorial Hermann Katy Hospital, at 23900 Katy Freeway, Katy, TX 77494 in Fort Bend County. The practice phone is (281) 392-1111.
- Memorial Hermann Katy Hospital23900 Katy Freeway, Katy, TX 77494 · Fort Bend CountyPhone(281) 392-1111
Source: Dmand AI Affiliation Data
Dr. Erik Ray Nelson is affiliated with 1 site of care and 5 medical groups
Dr. Nelson's primary practice is Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System. The medical group on file is Memorial Hermann Medical Group. Dmand AI also links Dr. Nelson to 4 more medical groups, 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. Erik Ray Nelson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nelson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hermann Katy Hospital | Available with a free account |
| +4 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 Memorial Hermann Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Erik Ray Nelson is one of 1,491 hospitalists in Texas
Hospitalist is Dr. Nelson's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Nelson is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Nelson is licensed in Texas.
Specialties and state licenses
- Hospitalist, TexasPrimary
Clinical focus
Dmand AI lists acute diabetes, acute respiratory failure, anemia, atrial fibrillation and flutter, bile duct problems, cardiac arrhythmia, chest pain and chest trauma among the conditions Dr. Nelson treats.
Hospitalists near Dr. Nelson
Counts of hospitalists 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. Erik Ray Nelson billed Medicare for 456 services in 2024
CMS data shows 456 Medicare services from Dr. Nelson across 5 procedure codes in 2024, for 171 Medicare patients. Medicare paid $41,829 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nelson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9392024: 45651%
Dr. Nelson compared with the Texas median for hospitalists, 2024
- Dr. Nelson
- Texas median
- Medicare services
- 456vs 38718% above
- Medicare patients
- 171vs 178Close to median
- Part D claims
- 46vs 8445% below
Medians across 1,305 hospitalists in Texas with Dmand AI profiles that report each measure.
Dr. Nelson'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. Nelson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nelson and other hospitalists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Erik Ray Nelson treated 171 Medicare patients in 2024, average age 77
CMS counts 171 Medicare patients who saw Dr. Nelson in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.15, 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. Nelson's median patient age at 61, with 50% women.
Dr. Nelson's Medicare patients by age, 2024
Dr. Nelson's Medicare patients by sex, 2024
- Women9757%
- Men7443%
Chronic conditions among Dr. Nelson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis68%
- Ischemic heart disease55%
- Chronic kidney disease50%
- Mood disorders50%
- Diabetes49%
- Depression47%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nelson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Erik Ray Nelson wrote 221 Medicare Part D claims in 2024
In 2024, Dr. Nelson wrote 221 Medicare Part D claims for 103 patients. 90% of them were for generic drugs. CMS names the drug for 46 of them, across 3 drugs with 11 or more claims each, at $705 in total drug cost. In 2023, CMS named 87 claims across 6 drugs.
Dr. Nelson's Part D claims by kind of drug, 2024
- Generic198 claims90%
- Brand-name23 claims10%
Dr. Nelson'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. Nelson's Part D claims, 2024
- Opioids8%17 of 221 claims
- Antibiotics24%52 of 221 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: 872024: 4647%
Drugs named by CMS: 3 in 2024, 6 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
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. Erik Ray Nelson received $615 in industry payments from 2016 to 2019
CMS Open Payments shows 10 general payments to Dr. Nelson from 6 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $146.
General payments to Dr. Nelson by program year, 2016 to 2019
Companies that paid Dr. Nelson the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Erik Ray Nelson graduated from Touro University Nevada
Dr. Nelson graduated from Touro University Nevada in 2014. Dr. Nelson is a member of AOA.
- Medical school
- Board certified in internal medicine
- Board certified in 2025 - 2027
- Board certified in 2025 - 2027
- Board certified in 2025 - 2027
- Board certified in 2025 - 2026
- Board certified in 2017 - 2020
- Board certified in 2025 - 2026
- Board certified in 2025 - 2025
- Board certified in 2025 - 2025
- Board certified in 2025 - 2026
- Board certified in 2025 - 2026
- Board certified in 2025 - 2027
- Board certified in 2025 - 2027
- Board certified in 2017 - 2025
- Board certified in 2025 - 2025
- Board certified in 2025 - 2026
- Board certified in 2018 - 2025
Source: Dmand AI Professional Profile Data
Dr. Erik Ray Nelson accepts plans from 20 insurance carriers
Dr. Nelson is in network with 20 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Cigna
- HCSC
- Aetna
- Alliant Health Plans
- Blue Cross Blue Shield of Massachusetts
- +12 more carriersWith a free account
Plan types Dr. Nelson accepts, by number of carriers
- HMO11
- PPO11
- Medicare8
- POS5
- EPO3
- Medicaid2
Source: Dmand AI Insurance Network Data
Sources for Dr. Erik Ray Nelson'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Erik Ray Nelson
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. Erik Ray Nelson's NPI number?
Dr. Erik Ray Nelson's NPI number is 1609287697. It was assigned on May 13, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Erik Ray Nelson?
Dr. Erik Ray Nelson is a hospitalist in Katy, Texas. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Erik Ray Nelson practice?
Dr. Nelson practices at 23900 Katy Freeway, Katy, TX 77494. Dr. Nelson's primary practice is Memorial Hermann Katy Hospital in Katy, Texas, part of Memorial Hermann Health System. Dmand AI also links Dr. Nelson to 4 medical groups.
What is Dr. Erik Ray Nelson's office phone number?
The practice phone on file for Dr. Nelson is (281) 392-1111.
What is Dr. Erik Ray Nelson's medical license number?
Dr. Nelson holds Texas license R8439.
Which hospitals is Dr. Erik Ray Nelson affiliated with?
Dr. Nelson practices at Memorial Hermann Katy Hospital in Katy, Texas.
What medical group is Dr. Erik Ray Nelson part of?
Dr. Nelson is linked to Memorial Hermann Medical Group. Dmand AI links Dr. Nelson to 4 more medical groups.
Does Dr. Erik Ray Nelson accept Medicare?
Yes. CMS data shows Dr. Nelson billed Medicare for 456 services in 2024.
How many Medicare patients does Dr. Erik Ray Nelson see?
CMS counts 171 Medicare patients who saw Dr. Nelson in 2024, with an average age of 77.
Is Dr. Erik Ray Nelson board certified?
Yes. Dr. Nelson is board certified in internal medicine by the AOA Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Erik Ray Nelson bill to Medicare?
In 2024, Dr. Nelson's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99239).
Where did Dr. Erik Ray Nelson go to medical school?
Dr. Nelson graduated from Touro University Nevada in 2014.
What drugs does Dr. Erik Ray Nelson prescribe most?
In 2024 Medicare Part D data, Dr. Nelson's most prescribed drugs by claims were Cefdinir, Albuterol Sulfate Hfa and Ondansetron HCl.
Has Dr. Erik Ray Nelson received payments from drug or device companies?
CMS Open Payments shows $615 in general payments to Dr. Nelson from 6 companies from 2016 to 2019. The largest total came from Pfizer Inc.
How long has Dr. Erik Ray Nelson been practicing?
Dr. Nelson graduated from medical school in 2014, 12 years ago.
What insurance does Dr. Erik Ray Nelson accept?
Dr. Nelson is in network with 20 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
Selling to hospitalist practices?
See hospitalists in Texas 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