Dr. Rex E. Hudson, MD
- Medicare services, 2024
- 107
- Medicare patients, 2026
- 67
- Part D claims, 2026
- 8,078
- Hospital affiliations
- 1
- Industry payments
- $48,781
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hudson's professional email, personal email and mobile number
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Dr. Rex E. Hudson is a general practice physician in Saint Louis, Missouri
Dr. Hudson practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Hudson's NPI, 1235113325, was assigned on December 1, 2005. Dr. Hudson graduated from University of Nebraska College of Medicine in 1990. Dr. Hudson holds Missouri license 2003002294.
- NPI
- 1235113325NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123173051
- NPI enumeration date
- December 1, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Rex E. Hudson practices at 2 locations in Saint Louis, Missouri
Dr. Hudson's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. Dr. Hudson also practices at Barnes-Jewish Hospital, 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- Barnes-Jewish Hospital1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 747-3000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Rex E. Hudson is affiliated with 6 sites of care and 4 medical groups
Dr. Hudson's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is Generation Clinical Partners. Dmand AI also links Dr. Hudson to 3 more group practices and clinics, 3 medical groups, 1 hospice and 1 skilled nursing facility, 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. Rex E. Hudson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hudson practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Rex E. Hudson is one of 124 general practice physicians in Missouri
General practice is Dr. Hudson's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Hudson is licensed in Missouri.
Specialties and state licenses
- General practice, MissouriPrimary
General practice physicians near Dr. Hudson
Counts of general practice 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. Rex E. Hudson billed Medicare for 107 services in 2024
CMS data shows 107 Medicare services from Dr. Hudson across 4 procedure codes in 2024, for 67 Medicare patients. Medicare paid $8,674 for them.
Dr. Hudson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7622024: 10786%
- Other services
- 2023: 1,1002024: 0100%
Where Dr. Hudson's Medicare services took place, 2024
- In an office1413%
- In a facility9387%
Dr. Hudson compared with the Missouri median for general practice physicians, 2024
- Dr. Hudson
- Missouri median
- Medicare services
- 107vs 14024% below
- Medicare patients
- 67vs 9227% below
- Part D claims
- 7,745vs 10176.7 times
Medians across 122 general practice physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Hudson'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Rex E. Hudson treated 67 Medicare patients in 2026, average age 85
CMS counts 67 Medicare patients who saw Dr. Hudson in 2026. The largest group is 85 and over, with 45 patients. 75% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 1.78, 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. Hudson's median patient age at 89, with 71% women.
Dr. Hudson's Medicare patients by age, 2026
CMS leaves out age groups with fewer than 11 patients.
Dr. Hudson's Medicare patients by sex, 2026
- Women4770%
- Men2030%
Chronic conditions among Dr. Hudson's Medicare patients, 2026
- High blood pressure75%
- High cholesterol73%
- Arthritis64%
- Anxiety54%
- Mood disorders51%
- Alzheimer's and dementia49%
- Depression49%
- Chronic kidney disease43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hudson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 89
Patient panel by sex, all payers
- Women71%
- Men28%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Rex E. Hudson wrote 8,078 Medicare Part D claims in 2026
In 2026, Dr. Hudson wrote 8,078 Medicare Part D claims for 95 patients. 89% of them were for generic drugs. CMS names the drug for 7,745 of them, across 110 drugs with 11 or more claims each, at $194,566 in total drug cost. In 2023, CMS named 15,426 claims across 145 drugs.
Dr. Hudson's Part D claims by kind of drug, 2026
- Generic7,213 claims89%
- Brand-name845 claims10%
- Other20 claims0%
Dr. Hudson'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. Hudson's Part D claims, 2026
- Opioids0%39 of 8,078 claims
- Antibiotics1%90 of 8,078 claims
- Antipsychotics, patients 65 and over1%100 of 8,078 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: 15,4262024: 7,74550%
Drugs named by CMS: 110 in 2024, 145 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), 2026 data
How Dr. Rex E. Hudson takes part in Medicare
Dr. Hudson 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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Dr. Rex E. Hudson received $48,781 in industry payments from 2017 to 2024
CMS Open Payments shows 95 general payments to Dr. Hudson from 2 drug and device companies from 2017 to 2024. Consulting fees make up the largest share, 96% of the total. Novartis Pharmaceuticals Corporation paid the most, $48,766.
General payments to Dr. Hudson by program year, 2017 to 2024
General payments to Dr. Hudson by kind, 2017 to 2024
- Consulting fees$46,77996%
- Travel and lodging$1,0372%
- Speaker and faculty fees$9502%
- Food and beverage$150%
Companies that paid Dr. Hudson the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Rex E. Hudson graduated from University of Nebraska College of Medicine
Dr. Hudson graduated from University of Nebraska College of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Rex E. Hudson'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 DataDmand AI Practice 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. Rex E. Hudson
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. Rex E. Hudson's NPI number?
Dr. Rex E. Hudson's NPI number is 1235113325. It was assigned on December 1, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Rex E. Hudson?
Dr. Rex E. Hudson is a general practice physician in Saint Louis, Missouri. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Rex E. Hudson practice?
Dr. Hudson practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Hudson also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Hudson's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Dr. Hudson to 3 group practices and clinics, 3 medical groups, 1 hospice and 1 skilled nursing facility, and a free account names each one.
What is Dr. Rex E. Hudson's office phone number?
The practice phone on file for Dr. Hudson is (314) 747-3000. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Rex E. Hudson's email address?
Dmand AI checks professional and personal email addresses for Dr. Hudson through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Rex E. Hudson's medical license number?
Dr. Hudson holds Missouri license 2003002294.
Which hospitals is Dr. Rex E. Hudson affiliated with?
Dr. Hudson practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Rex E. Hudson part of?
Dr. Hudson is linked to Generation Clinical Partners. Dmand AI links Dr. Hudson to 3 more medical groups, named with a free account.
Who does Dr. Rex E. Hudson practice with?
Dmand AI links 7 HCPs to Dr. Hudson's primary medical group, 1 of them general practice physician. A free account lists them, with verified contacts.
Does Dr. Rex E. Hudson accept Medicare?
Yes. CMS data shows Dr. Hudson billed Medicare for 107 services in 2024, and Dr. Hudson accepts Medicare assignment.
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Rex E. Hudson see?
CMS counts 67 Medicare patients who saw Dr. Hudson in 2026, with an average age of 85.
What services does Dr. Rex E. Hudson bill to Medicare?
In 2024, Dr. Hudson's most billed Medicare services were nursing facility care (99309), nursing facility care (99308) and nursing facility care (99306).
Where did Dr. Rex E. Hudson go to medical school?
Dr. Hudson graduated from University of Nebraska College of Medicine in 1990.
What drugs does Dr. Rex E. Hudson prescribe most?
In 2024 Medicare Part D data, Dr. Hudson's most prescribed drugs by claims were Levothyroxine Sodium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. Rex E. Hudson received payments from drug or device companies?
CMS Open Payments shows $48,781 in general payments to Dr. Hudson from 2 companies from 2017 to 2024. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Rex E. Hudson been practicing?
Dr. Hudson graduated from medical school in 1990, 36 years ago.
What EHR does Dr. Rex E. Hudson's practice use?
Dmand AI tracks the EHR system at Barnes-Jewish Hospital and at 5 more sites and 3 medical groups. The vendor and product are available with a free Dmand AI account.
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