Dr. Geoffrey Kenneth Hahm, MD
- Medicare services, 2024
- 4,272
- Medicare patients, 2024
- 1,629
- MIPS score, 2024
- 100
- Hospital affiliations
- 5
- Industry payments
- $58
- Practice address
- 75 Sylvania Drive, Beaver Creek, OH 45440
- Practice phone
- Call (937) 320-5050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Dayton Gastroenterology - Beavercreek
Surgery Center - Medicare-Certified · Beaver Creek, Ohio
Find Dr. Hahm's professional email, personal email and mobile number
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Dr. Geoffrey Kenneth Hahm is a pathologist in Dayton, Ohio
Dr. Hahm practices at Dayton Gastroenterology - Beavercreek in Beaver Creek, Ohio.
Dr. Hahm's NPI, 1871543942, was assigned on May 11, 2006. Dr. Hahm graduated from Ohio State University College of Medicine in 1996. Dr. Hahm holds Ohio license 35073158.
- NPI
- 1871543942NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830185958
- NPI enumeration date
- May 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (937) 320-5050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Geoffrey Kenneth Hahm practices at Dayton Gastroenterology - Beavercreek in Beaver Creek, Ohio
Dr. Hahm's primary practice is Dayton Gastroenterology - Beavercreek, at 75 Sylvania Drive, Beaver Creek, OH 45440. The practice phone is (937) 320-5050.
- Dayton Gastroenterology - Beavercreek75 Sylvania Drive, Beaver Creek, OH 45440Phone(937) 320-5050
Source: Dmand AI Affiliation Data
Dr. Geoffrey Kenneth Hahm is affiliated with 6 sites of care and 3 medical groups
Dr. Hahm's primary practice is Dayton Gastroenterology - Beavercreek in Beaver Creek, Ohio. Dr. Hahm is also affiliated with Kettering Health Dayton. The medical group on file is Dayton Gastroenterology. Dmand AI also links Dr. Hahm to 4 more hospitals and 2 medical groups, 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. Geoffrey Kenneth Hahm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hahm practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dayton Gastroenterology - Beavercreek | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Geoffrey Kenneth Hahm is one of 525 pathologists in Ohio
Anatomic pathology and clinical pathology is Dr. Hahm's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Hahm is licensed in Ohio.
Specialties and state licenses
- Anatomic pathology and clinical pathology, OhioPrimary
Pathologists near Dr. Hahm
Counts of pathologists 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. Geoffrey Kenneth Hahm billed Medicare for 4,272 services in 2024
CMS data shows 4,272 Medicare services from Dr. Hahm across 23 procedure codes in 2024, for 1,629 Medicare patients. Medicare paid $148,779 for them.
Dr. Hahm's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 4,4362024: 4,2554%
- Other services
- 2023: 112024: 1755%
- Imaging
- 2023: 122024: 0100%
Where Dr. Hahm's Medicare services took place, 2024
- In an office1,47234%
- In a facility2,80066%
Dr. Hahm compared with the Ohio median for pathologists, 2024
- Dr. Hahm
- Ohio median
- Medicare services
- 4,272vs 1,1853.6 times
- Medicare patients
- 1,629vs 5033.2 times
Medians across 571 pathologists in Ohio with Dmand AI profiles that report each measure.
Dr. Hahm'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. Hahm and other pathologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Geoffrey Kenneth Hahm treated 1,629 Medicare patients in 2024, average age 74
CMS counts 1,629 Medicare patients who saw Dr. Hahm in 2024. The largest group is 65 to 74, with 847 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.55, 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. Hahm's median patient age at 61, with 55% women.
Dr. Hahm's Medicare patients by age, 2024
Dr. Hahm's Medicare patients by sex, 2024
- Women85452%
- Men77548%
Chronic conditions among Dr. Hahm's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes35%
- Ischemic heart disease35%
- Chronic kidney disease33%
- Mood disorders30%
- Anxiety29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hahm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
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. Geoffrey Kenneth Hahm scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Hahm for performance year 2024, reported as part of a group. Dr. Hahm accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hahm's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Geoffrey Kenneth Hahm received $58 in industry payments from 2017 to 2024
CMS Open Payments shows 3 general payments to Dr. Hahm from 3 drug and device companies from 2017 to 2024. Food and beverage make up the largest share, 57% of the total. Sofregen Medical Inc. paid the most, $25.
General payments to Dr. Hahm by program year, 2017 to 2024
General payments to Dr. Hahm by kind, 2017 to 2024
- Food and beverage$3357%
- Entertainment$2543%
Companies that paid Dr. Hahm the most, 2017 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Geoffrey Kenneth Hahm graduated from Ohio State University College of Medicine
Dr. Hahm graduated from Ohio State University College of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Geoffrey Kenneth Hahm'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)Clinician Public Reporting: Overall MIPS Performance (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. Geoffrey Kenneth Hahm
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. Geoffrey Kenneth Hahm's NPI number?
Dr. Geoffrey Kenneth Hahm's NPI number is 1871543942. It was assigned on May 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Geoffrey Kenneth Hahm?
Dr. Geoffrey Kenneth Hahm is a pathologist in Dayton, Ohio. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Geoffrey Kenneth Hahm practice?
Dr. Hahm practices at 75 Sylvania Drive, Beaver Creek, OH 45440. Dr. Hahm's primary practice is Dayton Gastroenterology - Beavercreek in Beaver Creek, Ohio. Dmand AI also links Dr. Hahm to 4 hospitals and 2 medical groups.
What is Dr. Geoffrey Kenneth Hahm's office phone number?
The practice phone on file for Dr. Hahm is (937) 320-5050.
What is Dr. Geoffrey Kenneth Hahm's medical license number?
Dr. Hahm holds Ohio license 35073158.
Which hospitals is Dr. Geoffrey Kenneth Hahm affiliated with?
Dr. Hahm is affiliated with Kettering Health Dayton. Dmand AI links Dr. Hahm to 4 more hospitals.
What medical group is Dr. Geoffrey Kenneth Hahm part of?
Dr. Hahm is linked to Dayton Gastroenterology. Dmand AI links Dr. Hahm to 2 more medical groups.
Does Dr. Geoffrey Kenneth Hahm accept Medicare?
Yes. CMS data shows Dr. Hahm billed Medicare for 4,272 services in 2024, and Dr. Hahm accepts Medicare assignment.
What is Dr. Geoffrey Kenneth Hahm's MIPS score?
Dr. Hahm's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Geoffrey Kenneth Hahm see?
CMS counts 1,629 Medicare patients who saw Dr. Hahm in 2024, with an average age of 74.
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What services does Dr. Geoffrey Kenneth Hahm bill to Medicare?
In 2024, Dr. Hahm's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88341) and lab and pathology test (88342).
Where did Dr. Geoffrey Kenneth Hahm go to medical school?
Dr. Hahm graduated from Ohio State University College of Medicine in 1996.
Has Dr. Geoffrey Kenneth Hahm received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Hahm from 3 companies from 2017 to 2024. The largest total came from Sofregen Medical Inc.
How long has Dr. Geoffrey Kenneth Hahm been practicing?
Dr. Hahm graduated from medical school in 1996, 30 years ago.
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