Hum Pathol
Dr. Gregory Scot Harmon, MD
- Medicare services, 2024
- 675
- Medicare patients, 2024
- 354
- Part D claims, 2024
- 845
- Publications
- 9
- Hospital affiliations
- 1
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Harmon'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. Gregory Scot Harmon is a gastroenterologist in Harbor City, California
Dr. Harmon practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Harmon's NPI, 1346347028, was assigned on September 17, 2006. Dr. Harmon graduated from Pritzker School of Medicine in 1999. Dr. Harmon holds California license A79243.
- NPI
- 1346347028NPI Registry (opens in a new tab)
- NPI enumeration date
- September 17, 2006
- NPI status
- Active
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory Scot Harmon practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Harmon's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Gregory Scot Harmon is affiliated with 1 site of care and 2 medical groups
Dr. Harmon's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Harmon to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory Scot Harmon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Harmon practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory Scot Harmon is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Harmon's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Harmon is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Harmon is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastroenteritis, gastrointestinal bleeding and irritable bowel syndrome (IBS) among the conditions Dr. Harmon treats.
Gastroenterologists near Dr. Harmon
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. Gregory Scot Harmon billed Medicare for 675 services in 2024
CMS data shows 675 Medicare services from Dr. Harmon across 11 procedure codes in 2024, for 354 Medicare patients. Medicare paid $72,870 for them.
Dr. Harmon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4152024: 3838%
- Surgery
- 2023: 2662024: 2774%
- Other services
- 2023: 342024: 1556%
Where Dr. Harmon's Medicare services took place, 2024
- In an office37255%
- In a facility30345%
Dr. Harmon compared with the California median for gastroenterologists, 2024
- Dr. Harmon
- California median
- Medicare services
- 675vs 58615% above
- Medicare patients
- 354vs 30217% above
- Part D claims
- 739vs 38094% above
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Harmon'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. Harmon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Harmon and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory Scot Harmon treated 354 Medicare patients in 2024, average age 75
CMS counts 354 Medicare patients who saw Dr. Harmon in 2024. The largest group is 65 to 74, with 169 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Harmon's median patient age at 65, with 55% women.
Dr. Harmon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Harmon's Medicare patients by sex, 2024
- Women19054%
- Men16446%
Chronic conditions among Dr. Harmon's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis45%
- Diabetes30%
- Chronic kidney disease23%
- Ischemic heart disease23%
- Osteoporosis23%
- Cancer19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Harmon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory Scot Harmon wrote 845 Medicare Part D claims in 2024
In 2024, Dr. Harmon wrote 845 Medicare Part D claims for 269 patients. 88% of them were for generic drugs. CMS names the drug for 739 of them, across 16 drugs with 11 or more claims each, at $448,112 in total drug cost. In 2023, CMS named 481 claims across 10 drugs.
Dr. Harmon's Part D claims by kind of drug, 2024
- Generic744 claims88%
- Brand-name101 claims12%
Dr. Harmon'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. Harmon's Part D claims, 2024
- Antibiotics2%19 of 845 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: 4812024: 73954%
Drugs named by CMS: 16 in 2024, 10 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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Gregory Scot Harmon has 9 publications on record
Dmand AI links 9 papers to Dr. Harmon, published from 2003 to 2011. 2010 was the busiest year, with 3. The most frequent topics are Celiac Disease, Colonic Polyps and Colonoscopy. Dr. Harmon's most frequent co-authors are Noel Weidner, MD, Shashi Kiran Bellam, MD and Maria L. Dowell, MD.
Dr. Harmon's papers by year, 2003 to 2011
Topics Dr. Harmon writes about most
- Celiac Disease
- Colonic Polyps
- Colonoscopy
- Diagnosis, Differential
- Signal Transduction
- Tomography, X-Ray Computed
- Transcription, Genetic
Dr. Harmon's most frequent co-authors
- Noel Weidner, MD2 shared papers
- Shashi Kiran Bellam, MD1 shared paper
- Maria L. Dowell, MD1 shared paper
Recent publications by Dr. Harmon
Clin Gastroenterol Hepatol
Am J Respir Cell Mol Biol
See who Dr. Harmon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Harmon 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. Gregory Scot Harmon received $3,608 in industry payments from 2016 to 2024
CMS Open Payments shows 237 general payments to Dr. Harmon from 24 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,213.
General payments to Dr. Harmon by program year, 2016 to 2024
Companies that paid Dr. Harmon 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. Gregory Scot Harmon has 1 award and honors on record
Dmand AI lists 1 award for Dr. Harmon, most recently CMS Stage 1 EHR in 2014.
Awards and honors for Dr. Harmon
- 2014
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Gregory Scot Harmon graduated from Pritzker School of Medicine
Dr. Harmon graduated from Pritzker School of Medicine in 1999. Dr. Harmon is a member of ACG, AGA and ASGE.
- Medical school
- Board certified in gastroenterology
Source: Dmand AI Professional Profile Data
Dr. Gregory Scot Harmon accepts plans from 10 insurance carriers
Dr. Harmon is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- LA Care
- CMS Medicare
- EMI Health
- +2 more carriersWith a free account
Plan types Dr. Harmon accepts, by number of carriers
- Medicare8
- HMO7
- PPO6
- POS4
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Gregory Scot Harmon'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) |
| 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) |
| 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. Gregory Scot Harmon
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. Gregory Scot Harmon's NPI number?
Dr. Gregory Scot Harmon's NPI number is 1346347028. It was assigned on September 17, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory Scot Harmon?
Dr. Gregory Scot Harmon is a gastroenterologist in Harbor City, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Gregory Scot Harmon practice?
Dr. Harmon practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Harmon's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dmand AI also links Dr. Harmon to 1 medical group.
What is Dr. Gregory Scot Harmon's office phone number?
The practice phone on file for Dr. Harmon is (310) 325-5111.
What is Dr. Gregory Scot Harmon's medical license number?
Dr. Harmon holds California license A79243.
Which hospitals is Dr. Gregory Scot Harmon affiliated with?
Dr. Harmon practices at Kaiser Permanente South Bay Medical Center in Harbor City, California.
What medical group is Dr. Gregory Scot Harmon part of?
Dr. Harmon is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Harmon to 1 more medical group.
Does Dr. Gregory Scot Harmon accept Medicare?
Yes. CMS data shows Dr. Harmon billed Medicare for 675 services in 2024.
How many Medicare patients does Dr. Gregory Scot Harmon see?
CMS counts 354 Medicare patients who saw Dr. Harmon in 2024, with an average age of 75.
Is Dr. Gregory Scot Harmon board certified?
Yes. Dr. Harmon is board certified in gastroenterology by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Gregory Scot Harmon bill to Medicare?
In 2024, Dr. Harmon's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (45385).
Where did Dr. Gregory Scot Harmon go to medical school?
Dr. Harmon graduated from Pritzker School of Medicine in 1999.
What drugs does Dr. Gregory Scot Harmon prescribe most?
In 2024 Medicare Part D data, Dr. Harmon's most prescribed drugs by claims were Omeprazole, Pantoprazole Sodium and Famotidine.
Has Dr. Gregory Scot Harmon received payments from drug or device companies?
CMS Open Payments shows $3,608 in general payments to Dr. Harmon from 24 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Gregory Scot Harmon been practicing?
Dr. Harmon graduated from medical school in 1999, 27 years ago.
Does Dr. Gregory Scot Harmon do research?
Dmand AI links 9 publications to Dr. Harmon, published from 2003 to 2011.
Who does Dr. Gregory Scot Harmon publish with?
Dr. Harmon's most frequent co-authors are Noel Weidner, MD (2 shared papers), Shashi Kiran Bellam, MD (1 shared paper) and Maria L. Dowell, MD (1 shared paper).
What insurance does Dr. Gregory Scot Harmon accept?
Dr. Harmon is in network with 10 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
Selling to gastroenterology practices?
See gastroenterologists in California 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