Dr. Thomas S. Granchi, MD
- Medicare services, 2024
- 160
- Medicare patients, 2024
- 110
- Publications
- 23
- Clinical trials
- 1
- Hospital affiliations
- 3
- Practice address
- 500 W Medical Center Blvd, Webster, TX 77598
- Practice phone
- Call (281) 332-2511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Granchi'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. Thomas S. Granchi is a general surgeon in Webster, Texas
Dr. Granchi practices at HCA Houston Healthcare Clear Lake in Webster, Texas, part of HCA Healthcare.
Dr. Granchi's NPI, 1770663023, was assigned on October 17, 2006. Dr. Granchi graduated from Ohio State College of Medicine in 1988. Dr. Granchi's Iowa license number on file is 41247.
- NPI
- 1770663023NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941363923
- NPI enumeration date
- October 17, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (281) 332-2511
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Thomas S. Granchi practices at HCA Houston Healthcare Clear Lake in Webster, Texas
Dr. Granchi's primary practice is HCA Houston Healthcare Clear Lake, at 500 W Medical Center Blvd, Webster, TX 77598 in Harris County. The practice phone is (281) 332-2511.
- HCA Houston Healthcare Clear Lake500 W Medical Center Blvd, Webster, TX 77598 · Harris CountyPhone(281) 332-2511
Source: Dmand AI Affiliation Data
Dr. Thomas S. Granchi is affiliated with 3 sites of care and 2 medical groups
Dr. Granchi's primary practice is HCA Houston Healthcare Clear Lake in Webster, Texas, part of HCA Healthcare. Dr. Granchi is also affiliated with Corpus Christi Medical Center Doctors Regional. The medical group on file is Extant Healthcare. Dmand AI also links Dr. Granchi to 1 more hospital 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. Thomas S. Granchi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Granchi practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| HCA Houston Healthcare Clear Lake | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Thomas S. Granchi is one of 1,939 general surgeons in Texas
Surgery is Dr. Granchi's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Granchi is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Granchi's licenses on file in 5 states: Iowa, Georgia, Florida, Texas and Alabama.
Specialties and state licenses
- Surgery, IowaPrimary
- Georgia license
- Florida license
- Texas license
- Alabama license
Clinical focus
Dmand AI lists chest trauma, gallbladder removal and traumatic coma among the conditions Dr. Granchi treats.
General surgeons near Dr. Granchi
Counts of general surgeons 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. Thomas S. Granchi billed Medicare for 160 services in 2024
CMS data shows 160 Medicare services from Dr. Granchi across 5 procedure codes in 2024, for 110 Medicare patients. Medicare paid $17,970 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Granchi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 922024: 16074%
Dr. Granchi compared with the Texas median for general surgeons, 2024
- Dr. Granchi
- Texas median
- Medicare services
- 160vs 11836% above
- Medicare patients
- 110vs 9713% above
Medians across 1,674 general surgeons in Texas with Dmand AI profiles that report each measure.
Dr. Granchi'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. Granchi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Granchi and other general surgeons in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas S. Granchi treated 110 Medicare patients in 2024, average age 81
CMS counts 110 Medicare patients who saw Dr. Granchi in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.85, 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. Granchi's median patient age at 59, with 47% women.
Dr. Granchi's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Granchi's Medicare patients by sex, 2024
- Women6458%
- Men4642%
Chronic conditions among Dr. Granchi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease52%
- Heart failure47%
- Chronic kidney disease44%
- Atrial fibrillation43%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Granchi's 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
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Thomas S. Granchi takes part in Medicare
Dr. Granchi 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. Thomas S. Granchi has 23 publications on record
Dmand AI links 23 papers to Dr. Granchi, published from 2010 to 2023. 2020 was the busiest year, with 2. The most frequent topics are Wounds and Injuries, Breast Neoplasms and Abdominal Injuries. Dr. Granchi has published most often in Am J Surg. Dr. Granchi's most frequent co-authors are Matthew Wall, MD, Kenneth L. Mattox, MD and Kathleen R. Liscum, MD.
Dr. Granchi's papers by year, 2010 to 2023
Topics Dr. Granchi writes about most
- Wounds and Injuries
- Breast Neoplasms
- Abdominal Injuries
- Burns
- Educational Status
- Wounds, Penetrating
- Blood Vessel Prosthesis
- Blood Vessel Prosthesis Implantation
Dr. Granchi's most frequent co-authors
- Matthew Wall, MD11 shared papers
- Kenneth L. Mattox, MD10 shared papers
- Kathleen R. Liscum, MD7 shared papers
Recent publications by Dr. Granchi
Wilderness Environ Med
Patient Educ Couns
See who Dr. Granchi researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Granchi works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Thomas S. Granchi has worked on 1 clinical trial
Dmand AI links Dr. Granchi to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Abdominal Abscess and Abscess.
Conditions in Dr. Granchi's trials
- Abdominal Abscess
- Abscess
Recent clinical trials with Dr. Granchi
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Thomas S. Granchi received $461 in industry payments from 2020 to 2025
CMS Open Payments shows 12 general payments to Dr. Granchi from 8 drug and device companies from 2020 to 2025. Food and beverage make up the largest share, 100% of the total. Ethicon Inc. paid the most, $179.
General payments to Dr. Granchi by program year, 2020 to 2025
Companies that paid Dr. Granchi the most, 2020 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas S. Granchi has 1 award and honors on record
Dmand AI lists 1 award for Dr. Granchi.
Awards and honors for Dr. Granchi
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Thomas S. Granchi graduated from Ohio State College of Medicine
Dr. Granchi graduated from Ohio State College of Medicine in 1988. Dr. Granchi is a member of American Association for Surgery of Trauma, American Burn Association, SCCM, ACS and Texas Surgical Society.
- Medical school
- Board certified in surgery
- Board certified in surgical critical care
Source: Dmand AI Professional Profile Data
Dr. Thomas S. Granchi accepts plans from 21 insurance carriers
Dr. Granchi is in network with 21 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Aetna
- Cigna
- Elevance
- Alliant Health Plans
- Aspirus Health Plan
- Blue Cross Blue Shield of Massachusetts
- +13 more carriersWith a free account
Plan types Dr. Granchi accepts, by number of carriers
- PPO12
- HMO11
- Medicare6
- EPO4
- POS4
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas S. Granchi'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Thomas S. Granchi
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. Thomas S. Granchi's NPI number?
Dr. Thomas S. Granchi's NPI number is 1770663023. It was assigned on October 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas S. Granchi?
Dr. Thomas S. Granchi is a general surgeon in Webster, Texas. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Thomas S. Granchi practice?
Dr. Granchi practices at 500 W Medical Center Blvd, Webster, TX 77598. Dr. Granchi's primary practice is HCA Houston Healthcare Clear Lake in Webster, Texas, part of HCA Healthcare. Dmand AI also links Dr. Granchi to 1 hospital and 1 medical group.
What is Dr. Thomas S. Granchi's office phone number?
The practice phone on file for Dr. Granchi is (281) 332-2511.
What is Dr. Thomas S. Granchi's medical license number?
Dr. Granchi's Iowa license number on file is 41247, one of the licenses on file in 5 states.
Which states has Dr. Thomas S. Granchi been licensed in?
Dmand AI has state licenses on file for Dr. Granchi in Iowa (2013 to 2021), Georgia (2019 to 2027), Florida (2012 to 2026), Texas (1989 to 2026) and Alabama (1993 to 1995).
Which hospitals is Dr. Thomas S. Granchi affiliated with?
Dr. Granchi practices at HCA Houston Healthcare Clear Lake in Webster, Texas. Dr. Granchi is also affiliated with Corpus Christi Medical Center Doctors Regional. Dmand AI links Dr. Granchi to 1 more hospital.
What medical group is Dr. Thomas S. Granchi part of?
Dr. Granchi is linked to Extant Healthcare. Dmand AI links Dr. Granchi to 1 more medical group.
Does Dr. Thomas S. Granchi accept Medicare?
Yes. CMS data shows Dr. Granchi billed Medicare for 160 services in 2024, and Dr. Granchi accepts Medicare assignment.
How many Medicare patients does Dr. Thomas S. Granchi see?
CMS counts 110 Medicare patients who saw Dr. Granchi in 2024, with an average age of 81.
Show 8 more questionsShow fewer questions
Is Dr. Thomas S. Granchi board certified?
Yes. Dr. Granchi is board certified in surgery by the American Board of Surgery.
What services does Dr. Thomas S. Granchi bill to Medicare?
In 2024, Dr. Granchi's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and critical care (99291).
Where did Dr. Thomas S. Granchi go to medical school?
Dr. Granchi graduated from Ohio State College of Medicine in 1988.
Has Dr. Thomas S. Granchi received payments from drug or device companies?
CMS Open Payments shows $461 in general payments to Dr. Granchi from 8 companies from 2020 to 2025. The largest total came from Ethicon Inc.
How long has Dr. Thomas S. Granchi been practicing?
Dr. Granchi graduated from medical school in 1988, 38 years ago.
Does Dr. Thomas S. Granchi do research?
Dmand AI links 23 publications to Dr. Granchi, published from 2010 to 2023. Dr. Granchi has worked on 1 clinical trial.
Who does Dr. Thomas S. Granchi publish with?
Dr. Granchi's most frequent co-authors are Matthew Wall, MD (11 shared papers), Kenneth L. Mattox, MD (10 shared papers) and Kathleen R. Liscum, MD (7 shared papers).
What insurance does Dr. Thomas S. Granchi accept?
Dr. Granchi is in network with 21 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Aetna. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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