Gastrointest Endosc
Cross-Over StudiesDouble-Blind MethodElectric Stimulation Therapy
Dr. Ernest S. Weeks Jr., MD
NPI1134330822PAC ID6204092489
- Medicare services, 2024
- 9,766
- Medicare patients, 2024
- 449
- Part D claims, 2024
- 1,175
- Publications
- 2
- MIPS score, 2024
- 89
- Practice address
- 2510 Lakeland Drive, Flowood, MS 39232
- Practice phone
- Call (601) 354-1234
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
GI Associates & Endoscopy Center
Surgery Center - Medicare-Certified · Flowood, Mississippi
Find Dr. Weeks' 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. Ernest S. Weeks Jr. is a gastroenterologist in Flowood, Mississippi
Dr. Weeks practices at GI Associates & Endoscopy Center in Flowood, Mississippi.
Dr. Weeks' NPI, 1134330822, was assigned on May 24, 2007. Dr. Weeks holds Mississippi license 20530.
NPI and contact details
- NPI
- 1134330822NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204092489
- NPI enumeration date
- May 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (601) 354-1234
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ernest S. Weeks Jr. practices at GI Associates & Endoscopy Center in Flowood, Mississippi
Dr. Weeks' primary practice is GI Associates & Endoscopy Center, at 2510 Lakeland Drive, Flowood, MS 39232. The practice phone is (601) 354-1234.
- GI Associates & Endoscopy Center2510 Lakeland Drive, Flowood, MS 39232Phone(601) 354-1234
Source: Dmand AI Affiliation Data
Dr. Ernest S. Weeks Jr. is affiliated with 7 sites of care and 3 medical groups
Dr. Weeks' primary practice is GI Associates & Endoscopy Center in Flowood, Mississippi. Dr. Weeks is also affiliated with Merit Health River Oaks. The medical group on file is St. Dominic Medical Associates. Dmand AI also links Dr. Weeks to 4 more hospitals, 2 medical groups and 1 group practice or clinic, each named with a free account.
GI Associates & Endoscopy CenterPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ernest S. Weeks Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weeks practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| GI Associates & Endoscopy Center | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Weeks practices
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. Ernest S. Weeks Jr. is one of 104 gastroenterologists in Mississippi
Gastroenterology is Dr. Weeks' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Weeks is licensed in Mississippi.
Specialties and state licenses
- Gastroenterology, MississippiPrimary
Gastroenterologists near Dr. Weeks
Counts of gastroenterologists 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. Ernest S. Weeks Jr. billed Medicare for 9,766 services in 2024
CMS data shows 9,766 Medicare services from Dr. Weeks across 23 procedure codes in 2024, for 449 Medicare patients. Medicare paid $237,696 for them.
Medicare services, 20249,766
Medicare patients449
Paid by Medicare$237,696
Procedure codes23
Dr. Weeks' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 8,9262024: 8,7792%
- Office and hospital visits
- 2023: 1,6702024: 44773%
- Surgery
- 2023: 4592024: 38117%
- Tests and treatments
- 2023: 1432024: 8143%
- Lab and pathology
- 2023: 1062024: 4855%
- Imaging
- 2023: 02024: 30
- Other services
- 2023: 222024: 0100%
Where Dr. Weeks' Medicare services took place, 2024
- In an office9,34396%
- In a facility4234%
Dr. Weeks compared with the Mississippi median for gastroenterologists, 2024
- Dr. Weeks
- Mississippi median
- Medicare services
- 9,766vs 1,1548.5 times
- Medicare patients
- 449vs 56220% below
- Part D claims
- 1,004vs 1,004Close to median
Medians across 102 gastroenterologists in Mississippi with Dmand AI profiles that report each measure.
Dr. Weeks' 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. Weeks?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weeks and other gastroenterologists in Mississippi.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ernest S. Weeks Jr. treated 449 Medicare patients in 2024, average age 72
CMS counts 449 Medicare patients who saw Dr. Weeks in 2024. The largest group is 65 to 74, with 213 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Weeks' median patient age at 60, with 54% women.
Medicare patients, 2024449
Average age72
Average risk score1.33
Also on Medicaid15%
Dr. Weeks' Medicare patients by age, 2024
Dr. Weeks' Medicare patients by sex, 2024
- Women25256%
- Men19744%
Chronic conditions among Dr. Weeks' Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis53%
- Diabetes36%
- Ischemic heart disease36%
- Anxiety27%
- Mood disorders26%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weeks' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ernest S. Weeks Jr. wrote 1,175 Medicare Part D claims in 2024
In 2024, Dr. Weeks wrote 1,175 Medicare Part D claims for 492 patients. 82% of them were for generic drugs. CMS names the drug for 1,004 of them, across 19 drugs with 11 or more claims each, at $128,880 in total drug cost. In 2023, CMS named 1,013 claims across 21 drugs.
Part D claims, 20241,175
Drugs named by CMS19
Total drug cost$128,880
Part D patients492
Dr. Weeks' Part D claims by kind of drug, 2024
- Generic967 claims82%
- Brand-name and other208 claims18%
Dr. Weeks' 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. Weeks' Part D claims, 2024
- Antibiotics5%62 of 1,175 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: 1,0132024: 1,0041%
Drugs named by CMS: 19 in 2024, 21 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. Ernest S. Weeks Jr. scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Weeks for performance year 2024, reported through an alternative payment model (APM). Dr. Weeks accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 198 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Weeks, more than 90% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Weeks' MIPS scores, performance year 2024
- 89of 100Final score
- 73.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Weeks ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 90th percentile198 procedures
- Colonoscopy
- 87th percentile139 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
For MedTech and pharma teams
Find gastroenterologists like Dr. Weeks by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Ernest S. Weeks Jr. has 2 publications on record
Dmand AI links 2 papers to Dr. Weeks in 2012. Dr. Weeks' most frequent co-authors are Thomas Lyman Abell, MD and Feriyl Bhaijee, MD.
Papers2
Dr. Weeks' most frequent co-authors
Recent publications by Dr. Weeks
See who Dr. Weeks researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Weeks works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ernest S. Weeks Jr. received $36,823 in industry payments from 2016 to 2025
CMS Open Payments shows 382 general payments to Dr. Weeks from 31 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 71% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $28,175.
General payments to Dr. Weeks by program year, 2016 to 2025
General payments to Dr. Weeks by kind, 2016 to 2025
$36.8Kin total
- Speaker and faculty fees$26,11371%
- Food and beverage$5,60115%
- Education speaker fees$3,0008%
- Travel and lodging$2,1096%
Companies that paid Dr. Weeks the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ernest S. Weeks Jr.'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (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. Ernest S. Weeks Jr.
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. Ernest S. Weeks Jr.'s NPI number?
Dr. Ernest S. Weeks Jr.'s NPI number is 1134330822. It was assigned on May 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ernest S. Weeks Jr.?
Dr. Ernest S. Weeks Jr. is a gastroenterologist in Flowood, Mississippi. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Ernest S. Weeks Jr. practice?
Dr. Weeks practices at 2510 Lakeland Drive, Flowood, MS 39232. Dr. Weeks' primary practice is GI Associates & Endoscopy Center in Flowood, Mississippi. Dmand AI also links Dr. Weeks to 4 hospitals, 2 medical groups and 1 group practice or clinic.
What is Dr. Ernest S. Weeks Jr.'s office phone number?
The practice phone on file for Dr. Weeks is (601) 354-1234.
What is Dr. Ernest S. Weeks Jr.'s medical license number?
Dr. Weeks holds Mississippi license 20530.
Which hospitals is Dr. Ernest S. Weeks Jr. affiliated with?
Dr. Weeks is affiliated with Merit Health River Oaks. Dmand AI links Dr. Weeks to 4 more hospitals.
What medical group is Dr. Ernest S. Weeks Jr. part of?
Dr. Weeks is linked to St. Dominic Medical Associates. Dmand AI links Dr. Weeks to 2 more medical groups.
Does Dr. Ernest S. Weeks Jr. accept Medicare?
Yes. CMS data shows Dr. Weeks billed Medicare for 9,766 services in 2024, and Dr. Weeks accepts Medicare assignment.
What is Dr. Ernest S. Weeks Jr.'s MIPS score?
Dr. Weeks' MIPS final score for performance year 2024 is 89 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Ernest S. Weeks Jr. see?
CMS counts 449 Medicare patients who saw Dr. Weeks in 2024, with an average age of 72.
Show 6 more questionsShow fewer questions
What services does Dr. Ernest S. Weeks Jr. bill to Medicare?
In 2024, Dr. Weeks' most billed Medicare services were injected or infused drug (J3380), injected or infused drug (J1745) and care management and other visits (99490).
What drugs does Dr. Ernest S. Weeks Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Weeks' most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Gavilyte-C.
Has Dr. Ernest S. Weeks Jr. received payments from drug or device companies?
CMS Open Payments shows $36,823 in general payments to Dr. Weeks from 31 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.
How long has Dr. Ernest S. Weeks Jr. been practicing?
Dr. Weeks graduated from medical school in 2006, 20 years ago.
Does Dr. Ernest S. Weeks Jr. do research?
Dmand AI links 2 publications to Dr. Weeks.
Who does Dr. Ernest S. Weeks Jr. publish with?
Dr. Weeks' most frequent co-authors are Thomas Lyman Abell, MD (1 shared paper) and Feriyl Bhaijee, MD (1 shared paper).
Selling to gastroenterology practices?
See gastroenterologists in Mississippi 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