Dr. Craig S. Lammert, MD
- Medicare services, 2024
- 208
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 800
- Hospital affiliations
- 5
- Industry payments
- $17,475
- Practice address
- 1701 N Senate Blvd, Indianapolis, IN 46202
- Practice phone
- Call (317) 962-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lammert'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. Craig S. Lammert is a gastroenterologist in Indianapolis, Indiana
Dr. Lammert practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.
Dr. Lammert's NPI, 1356527733, was assigned on January 15, 2008. Dr. Lammert graduated from Indiana University School of Medicine in 2007. Dr. Lammert holds Indiana license 01073479A.
- NPI
- 1356527733NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5991839086
- NPI enumeration date
- January 15, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 962-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Craig S. Lammert practices at IU Health Methodist Hospital in Indianapolis, Indiana
Dr. Lammert's primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.
- IU Health Methodist Hospital1701 N Senate Blvd, Indianapolis, IN 46202 · Marion CountyPhone(317) 962-2000
Source: Dmand AI Affiliation Data
Dr. Craig S. Lammert is affiliated with 8 sites of care and 2 medical groups
Dr. Lammert's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dr. Lammert is also affiliated with Sidney & Lois Eskenazi Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Lammert to 3 more hospitals, 2 group practices and clinics, 1 behavioral health center and 1 medical group, 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. Craig S. Lammert's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lammert practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Methodist Hospital | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Craig S. Lammert is one of 333 gastroenterologists in Indiana
Gastroenterology is Dr. Lammert's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Lammert's licenses on file in 3 states: Indiana, Georgia and Minnesota.
Specialties and state licenses
- Gastroenterology, IndianaPrimary
- Internal medicine, Georgia
- Minnesota license
Gastroenterologists near Dr. Lammert
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. Craig S. Lammert billed Medicare for 208 services in 2024
CMS data shows 208 Medicare services from Dr. Lammert across 7 procedure codes in 2024, for 192 Medicare patients. Medicare paid $15,263 for them.
Dr. Lammert's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1532024: 17816%
- Tests and treatments
- 2023: 02024: 15
- Surgery
- 2023: 02024: 15
Where Dr. Lammert's Medicare services took place, 2024
- In an office7134%
- In a facility13766%
Dr. Lammert compared with the Indiana median for gastroenterologists, 2024
- Dr. Lammert
- Indiana median
- Medicare services
- 208vs 47156% below
- Medicare patients
- 192vs 30938% below
- Part D claims
- 672vs 42259% above
Medians across 330 gastroenterologists in Indiana with Dmand AI profiles that report each measure.
Dr. Lammert'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lammert and other gastroenterologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Craig S. Lammert treated 192 Medicare patients in 2024, average age 71
CMS counts 192 Medicare patients who saw Dr. Lammert in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 71% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.00, 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. Lammert's median patient age at 58, with 59% women.
Dr. Lammert's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lammert's Medicare patients by sex, 2024
- Women12163%
- Men7137%
Chronic conditions among Dr. Lammert's Medicare patients, 2024
- High blood pressure75%
- High cholesterol71%
- Arthritis49%
- Diabetes47%
- Ischemic heart disease40%
- Anxiety37%
- Chronic kidney disease37%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lammert's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Craig S. Lammert wrote 800 Medicare Part D claims in 2024
In 2024, Dr. Lammert wrote 800 Medicare Part D claims for 139 patients. 87% of them were for generic drugs. CMS names the drug for 672 of them, across 17 drugs with 11 or more claims each, at $258,653 in total drug cost. In 2023, CMS named 822 claims across 18 drugs.
Dr. Lammert's Part D claims by kind of drug, 2024
- Generic693 claims87%
- Brand-name and other107 claims13%
Dr. Lammert'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. Lammert's Part D claims, 2024
- Antibiotics10%78 of 800 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: 8222024: 67218%
Drugs named by CMS: 17 in 2024, 18 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. Craig S. Lammert ranks in the 48th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare
Dr. Lammert accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Lammert, more than 48% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Lammert ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 48th percentile17 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Craig S. Lammert received $17,475 in industry payments from 2022 to 2025
CMS Open Payments shows 19 general payments to Dr. Lammert from 3 drug and device companies from 2022 to 2025. Consulting fees make up the largest share, 82% of the total. Eli Lilly and Company paid the most, $14,375. It also lists 1 research payment totaling $4,718 in 2025.
General payments to Dr. Lammert by program year, 2022 to 2025
General payments to Dr. Lammert by kind, 2022 to 2025
- Consulting fees$14,37582%
- Honoraria$3,00017%
- Food and beverage$1001%
Companies that paid Dr. Lammert the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Craig S. Lammert graduated from Indiana University School of Medicine
Dr. Lammert graduated from Indiana University School of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Craig S. Lammert'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)Doctors and Clinicians Utilization Data (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. Craig S. Lammert
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. Craig S. Lammert's NPI number?
Dr. Craig S. Lammert's NPI number is 1356527733. It was assigned on January 15, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Craig S. Lammert?
Dr. Craig S. Lammert is a gastroenterologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Craig S. Lammert practice?
Dr. Lammert practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Lammert's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Lammert to 3 hospitals, 2 group practices and clinics, 1 behavioral health center and 1 medical group.
What is Dr. Craig S. Lammert's office phone number?
The practice phone on file for Dr. Lammert is (317) 962-2000.
What is Dr. Craig S. Lammert's medical license number?
Dr. Lammert holds Indiana license 01073479A, one of the licenses on file in 3 states.
Which states has Dr. Craig S. Lammert been licensed in?
Dmand AI has state licenses on file for Dr. Lammert in Indiana, Georgia and Minnesota.
Which hospitals is Dr. Craig S. Lammert affiliated with?
Dr. Lammert practices at IU Health Methodist Hospital in Indianapolis, Indiana. Dr. Lammert is also affiliated with Sidney & Lois Eskenazi Hospital. Dmand AI links Dr. Lammert to 3 more hospitals.
What medical group is Dr. Craig S. Lammert part of?
Dr. Lammert is linked to IU Health Medical Group. Dmand AI links Dr. Lammert to 1 more medical group.
Does Dr. Craig S. Lammert accept Medicare?
Yes. CMS data shows Dr. Lammert billed Medicare for 208 services in 2024, and Dr. Lammert accepts Medicare assignment.
How many Medicare patients does Dr. Craig S. Lammert see?
CMS counts 192 Medicare patients who saw Dr. Lammert in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. Craig S. Lammert bill to Medicare?
In 2024, Dr. Lammert's most billed Medicare services were office visit, established patient (99214), hospital inpatient care (99222) and hospital inpatient care (99232).
Where did Dr. Craig S. Lammert go to medical school?
Dr. Lammert graduated from Indiana University School of Medicine in 2007.
What drugs does Dr. Craig S. Lammert prescribe most?
In 2024 Medicare Part D data, Dr. Lammert's most prescribed drugs by claims were Ursodiol, Mycophenolate Mofetil and Azathioprine.
Has Dr. Craig S. Lammert received payments from drug or device companies?
CMS Open Payments shows $17,475 in general payments to Dr. Lammert from 3 companies from 2022 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Craig S. Lammert been practicing?
Dr. Lammert graduated from medical school in 2007, 19 years ago.
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