Dr. Glenn S. Freed, DO
- Medicare services, 2023
- 53
- Part D claims, 2024
- 234
- Publications
- 1
- Clinical trials
- 9
- Hospital affiliations
- 1
- Practice address
- 3601 S 6th Ave, Tucson, AZ 85723
- Practice phone
- Call (702) 341-3152
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southern Arizona VA Health Care System
Tucson, Arizona
Find Dr. Freed'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. Glenn S. Freed is a gastroenterologist in Tucson, Arizona
Dr. Freed practices at Southern Arizona VA Health Care System in Tucson, Arizona.
Dr. Freed's NPI, 1407841067, was assigned on September 20, 2005. Dr. Freed graduated from Philadelphia College of Osteopathic Medicine in 1978. Dr. Freed holds Pennsylvania license OS004145L.
- NPI
- 1407841067NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8921059049
- NPI enumeration date
- September 20, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (702) 341-3152
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 74
- Medical school graduation
- 1978
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Glenn S. Freed practices at Southern Arizona VA Health Care System in Tucson, Arizona
Dr. Freed's primary practice is Southern Arizona VA Health Care System, at 3601 S 6th Ave, Tucson, AZ 85723 in Pima County. The practice phone is (702) 341-3152.
- Southern Arizona VA Health Care System3601 S 6th Ave, Tucson, AZ 85723 · Pima CountyPhone(702) 341-3152
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Glenn S. Freed is affiliated with 4 sites of care and 5 medical groups
Dr. Freed's primary practice is Southern Arizona VA Health Care System in Tucson, Arizona. Dr. Freed is also affiliated with Lehigh Valley Hospital-Hazleton. The medical group on file is St. Luke's South Mountain Family Practice. Dmand AI also links Dr. Freed to 4 more medical groups, 1 physician office and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Glenn S. Freed's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Freed practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southern Arizona VA Health Care System | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Glenn S. Freed is one of 380 gastroenterologists in Arizona
Gastroenterology is Dr. Freed's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Freed is licensed in Pennsylvania.
Specialties and state licenses
- Gastroenterology, PennsylvaniaPrimary
Gastroenterologists near Dr. Freed
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. Glenn S. Freed billed Medicare for 53 services in 2023
CMS data shows 53 Medicare services from Dr. Freed across 2 procedure codes in 2023, all of them office visits. Medicare paid $3,778 for them. Every service was in an office.
Dr. Freed's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 962023: 5345%
- Surgery
- 2022: 172023: 0100%
Dr. Freed compared with the Arizona median for gastroenterologists, 2023
- Dr. Freed
- Arizona median
- Medicare services
- 53vs 50890% below
- Part D claims
- 162vs 31048% below
Medians across 369 gastroenterologists in Arizona with Dmand AI profiles that report each measure.
Dr. Freed's most billed Medicare procedure codes, 2023
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. Freed?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Freed and other gastroenterologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Glenn S. Freed's patients have a median age of 70
Across all payers, Dmand AI patient panel data puts Dr. Freed's median patient age at 70, with 44% women.
Dr. Freed's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women44%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. Glenn S. Freed wrote 234 Medicare Part D claims in 2024
In 2024, Dr. Freed wrote 234 Medicare Part D claims for 49 patients. 57% of them were for generic drugs. CMS names the drug for 162 of them, across 9 drugs with 11 or more claims each, at $423,424 in total drug cost. In 2023, CMS named 285 claims across 15 drugs.
Dr. Freed's Part D claims by kind of drug, 2024
- Generic133 claims57%
- Brand-name101 claims43%
Dr. Freed'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2852024: 16243%
Drugs named by CMS: 9 in 2024, 15 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
How Dr. Glenn S. Freed takes part in Medicare
Dr. Freed accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Glenn S. Freed has 1 publication on record
Dmand AI links 1 paper to Dr. Freed. Dr. Freed's most frequent co-authors are Hays L. Arnold, MD, Mark S. Avila, MD and Michael A. Biederman, DO.
Dr. Freed's most frequent co-authors
- Hays L. Arnold, MD1 shared paper
- Mark S. Avila, MD1 shared paper
- Michael A. Biederman, DO1 shared paper
Recent publications by Dr. Freed
See who Dr. Freed researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Freed 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. Glenn S. Freed has worked on 9 clinical trials
Dmand AI links Dr. Freed to 9 clinical trials. 2 are still active or recruiting. Conditions studied include Colitis, Ulcerative, Colitis and Rectal Diseases. Eli Lilly and Company sponsors the most, 6. Open Payments lists research payments to Dr. Freed that name 5 trials.
Conditions in Dr. Freed's trials
- Colitis, Ulcerative
- Colitis
- Rectal Diseases
- Colorectal Neoplasms
- Alzheimer Disease
Investigators on the most trials with Dr. Freed
- James A. Maher, MD7 shared trials
- Javier Sobrado, MD6 shared trials
- Sayed M. Yossef, MD6 shared trials
Recent clinical trials with Dr. Freed
A Study of AK002 in Patients With Eosinophilic Gastritis and/or Eosinophilic Gastroenteritis (opens in a new tab)
A Study of Mirikizumab (LY3074828) in Participants With Ulcerative Colitis (opens in a new tab)
A Study of Mirikizumab (LY3074828) in Participants With Crohn's Disease (opens in a new tab)
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Glenn S. Freed received $58,864 in industry payments from 2016 to 2024
CMS Open Payments shows 274 general payments to Dr. Freed from 27 drug and device companies from 2016 to 2024. Speaker and faculty fees make up the largest share, 84% of the total. Gilead Sciences, Inc. paid the most, $55,415. It also lists 6 research payments totaling $24,966 from 2020 to 2023, naming 5 clinical trials.
General payments to Dr. Freed by program year, 2016 to 2024
General payments to Dr. Freed by kind, 2016 to 2024
- Speaker and faculty fees$49,22584%
- Food and beverage$4,0337%
- Travel and lodging$2,7655%
- Consulting fees$2,7005%
- Other$1400%
Companies that paid Dr. Freed the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Glenn S. Freed graduated from Philadelphia College of Osteopathic Medicine
Dr. Freed graduated from Philadelphia College of Osteopathic Medicine in 1978.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Glenn S. Freed'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| 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) |
| 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) |
| 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. Glenn S. Freed
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. Glenn S. Freed's NPI number?
Dr. Glenn S. Freed's NPI number is 1407841067. It was assigned on September 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Glenn S. Freed?
Dr. Glenn S. Freed is a gastroenterologist in Tucson, Arizona. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Glenn S. Freed practice?
Dr. Freed practices at 3601 S 6th Ave, Tucson, AZ 85723. Dr. Freed's primary practice is Southern Arizona VA Health Care System in Tucson, Arizona. Dmand AI also links Dr. Freed to 4 medical groups, 1 physician office and 1 group practice or clinic.
What is Dr. Glenn S. Freed's office phone number?
The practice phone on file for Dr. Freed is (702) 341-3152.
What is Dr. Glenn S. Freed's medical license number?
Dr. Freed holds Pennsylvania license OS004145L.
Which hospitals is Dr. Glenn S. Freed affiliated with?
Dr. Freed is affiliated with Lehigh Valley Hospital-Hazleton.
What medical group is Dr. Glenn S. Freed part of?
Dr. Freed is linked to St. Luke's South Mountain Family Practice. Dmand AI links Dr. Freed to 4 more medical groups.
Does Dr. Glenn S. Freed accept Medicare?
Yes. CMS data shows Dr. Freed billed Medicare for 53 services in 2023, and Dr. Freed accepts Medicare assignment.
What services does Dr. Glenn S. Freed bill to Medicare?
In 2023, Dr. Freed's most billed Medicare services were office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Glenn S. Freed go to medical school?
Dr. Freed graduated from Philadelphia College of Osteopathic Medicine in 1978.
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What drugs does Dr. Glenn S. Freed prescribe most?
In 2024 Medicare Part D data, Dr. Freed's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Entyvio.
Has Dr. Glenn S. Freed received payments from drug or device companies?
CMS Open Payments shows $58,864 in general payments to Dr. Freed from 27 companies from 2016 to 2024. The largest total came from Gilead Sciences, Inc.
How long has Dr. Glenn S. Freed been practicing?
Dr. Freed graduated from medical school in 1978, 48 years ago.
Does Dr. Glenn S. Freed do research?
Dmand AI links 1 publication to Dr. Freed. Dr. Freed has worked on 9 clinical trials.
Who does Dr. Glenn S. Freed publish with?
Dr. Freed's most frequent co-authors are Hays L. Arnold, MD (1 shared paper), Mark S. Avila, MD (1 shared paper) and Michael A. Biederman, DO (1 shared paper).
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