Dr. David Michael Hasl, MD
- Medicare services, 2024
- 297
- Medicare patients, 2024
- 192
- Part D claims, 2024
- 135
- MIPS score, 2024
- 77
- Hospital affiliations
- 2
- Practice address
- 401 North Ewing Street, Lancaster, OH 43130
- Practice phone
- Call (740) 687-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hasl'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. David Michael Hasl is a general surgeon in Lancaster, Ohio
Dr. Hasl practices at Fairfield Medical Center in Lancaster, Ohio, part of Adena Occupational Health.
Dr. Hasl's NPI, 1710978424, was assigned on November 2, 2005. Dr. Hasl graduated from Wright State University Boonshoft School of Medicine in 1992. Dr. Hasl holds Ohio license 35069877.
- NPI
- 1710978424NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719874429
- NPI enumeration date
- November 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (740) 687-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Michael Hasl practices at Fairfield Medical Center in Lancaster, Ohio
Dr. Hasl's primary practice is Fairfield Medical Center, at 401 North Ewing Street, Lancaster, OH 43130 in Fairfield County. The practice phone is (740) 687-8000.
- Fairfield Medical Center401 North Ewing Street, Lancaster, OH 43130 · Fairfield CountyPhone(740) 687-8000
Source: Dmand AI Affiliation Data
Dr. David Michael Hasl is affiliated with 4 sites of care and 2 medical groups
Dr. Hasl's primary practice is Fairfield Medical Center in Lancaster, Ohio, part of Adena Occupational Health. Dr. Hasl is also affiliated with Hocking Valley Community Hospital. The medical group on file is Fairfield Healthcare Professionals. Dmand AI also links Dr. Hasl to 2 more group practices and clinics 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. David Michael Hasl's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hasl practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fairfield Medical Center | Available with a free account |
| +3 more sites and 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 Adena Occupational Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David Michael Hasl is one of 1,056 general surgeons in Ohio
Surgery is Dr. Hasl's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hasl is licensed in Ohio.
Specialties and state licenses
- Surgery, OhioPrimary
General surgeons near Dr. Hasl
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. David Michael Hasl billed Medicare for 297 services in 2024
CMS data shows 297 Medicare services from Dr. Hasl across 12 procedure codes in 2024, for 192 Medicare patients. Medicare paid $23,493 for them.
Dr. Hasl's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1872024: 15716%
- Surgery
- 2023: 762024: 8613%
- Tests and treatments
- 2023: 652024: 3251%
- Other services
- 2023: 532024: 2258%
Where Dr. Hasl's Medicare services took place, 2024
- In an office12141%
- In a facility17659%
Dr. Hasl compared with the Ohio median for general surgeons, 2024
- Dr. Hasl
- Ohio median
- Medicare services
- 297vs 16877% above
- Medicare patients
- 192vs 12751% above
- Part D claims
- 58vs 4626% above
Medians across 1,031 general surgeons in Ohio with Dmand AI profiles that report each measure.
Dr. Hasl'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. Hasl?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hasl and other general surgeons in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Michael Hasl treated 192 Medicare patients in 2024, average age 70
CMS counts 192 Medicare patients who saw Dr. Hasl in 2024. The largest group is 65 to 74, with 111 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.74, 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. Hasl's median patient age at 63, with 48% women.
Dr. Hasl's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hasl's Medicare patients by sex, 2024
- Women10153%
- Men9147%
Chronic conditions among Dr. Hasl's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis44%
- Diabetes38%
- Ischemic heart disease37%
- Anxiety31%
- Chronic kidney disease28%
- Mood disorders27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hasl's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Michael Hasl wrote 135 Medicare Part D claims in 2024
In 2024, Dr. Hasl wrote 135 Medicare Part D claims for 87 patients. 96% of them were for generic drugs. CMS names the drug for 58 of them, across 2 drugs with 11 or more claims each, at $466 in total drug cost. In 2023, CMS named 100 claims across 3 drugs.
Dr. Hasl's Part D claims by kind of drug, 2024
- Generic130 claims96%
- Brand-name and other5 claims4%
Dr. Hasl'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. Hasl's Part D claims, 2024
- Opioids32%43 of 135 claims
- Antibiotics13%18 of 135 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: 1002024: 5842%
Drugs named by CMS: 2 in 2024, 3 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. David Michael Hasl scored 77 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 77 out of 100 for Dr. Hasl for performance year 2024, reported as part of a group. Dr. Hasl accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 37 procedures of colonoscopy by Dr. Hasl, more than 57% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Hasl's MIPS scores, performance year 2024
- 77of 100Final score
- 43.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Hasl ranks in Medicare procedure volume
- Colonoscopy
- 57th percentile37 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 50th percentile20 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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. David Michael Hasl received $12,171 in industry payments from 2016 to 2025
CMS Open Payments shows 56 general payments to Dr. Hasl from 25 drug and device companies from 2016 to 2025. Education make up the largest share, 82% of the total. Intuitive Surgical, Inc. paid the most, $11,111.
General payments to Dr. Hasl by program year, 2016 to 2025
General payments to Dr. Hasl by kind, 2016 to 2025
- Education$10,00082%
- Food and beverage$1,38611%
- Travel and lodging$7866%
Companies that paid Dr. Hasl the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Michael Hasl graduated from Wright State University Boonshoft School of Medicine
Dr. Hasl graduated from Wright State University Boonshoft School of Medicine in 1992.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Michael Hasl'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)Clinician Public Reporting: Overall MIPS Performance (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. David Michael Hasl
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. David Michael Hasl's NPI number?
Dr. David Michael Hasl's NPI number is 1710978424. It was assigned on November 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David Michael Hasl?
Dr. David Michael Hasl is a general surgeon in Lancaster, Ohio. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. David Michael Hasl practice?
Dr. Hasl practices at 401 North Ewing Street, Lancaster, OH 43130. Dr. Hasl's primary practice is Fairfield Medical Center in Lancaster, Ohio, part of Adena Occupational Health. Dmand AI also links Dr. Hasl to 2 group practices and clinics and 1 medical group.
What is Dr. David Michael Hasl's office phone number?
The practice phone on file for Dr. Hasl is (740) 687-8000.
What is Dr. David Michael Hasl's medical license number?
Dr. Hasl holds Ohio license 35069877.
Which hospitals is Dr. David Michael Hasl affiliated with?
Dr. Hasl practices at Fairfield Medical Center in Lancaster, Ohio. Dr. Hasl is also affiliated with Hocking Valley Community Hospital.
What medical group is Dr. David Michael Hasl part of?
Dr. Hasl is linked to Fairfield Healthcare Professionals. Dmand AI links Dr. Hasl to 1 more medical group.
Does Dr. David Michael Hasl accept Medicare?
Yes. CMS data shows Dr. Hasl billed Medicare for 297 services in 2024, and Dr. Hasl accepts Medicare assignment.
What is Dr. David Michael Hasl's MIPS score?
Dr. Hasl's MIPS final score for performance year 2024 is 77 out of 100, reported as part of a group.
How many Medicare patients does Dr. David Michael Hasl see?
CMS counts 192 Medicare patients who saw Dr. Hasl in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. David Michael Hasl bill to Medicare?
In 2024, Dr. Hasl's most billed Medicare services were special service (99152), office visit, established patient (99214) and surgery: digestive system (43239).
Where did Dr. David Michael Hasl go to medical school?
Dr. Hasl graduated from Wright State University Boonshoft School of Medicine in 1992.
What drugs does Dr. David Michael Hasl prescribe most?
In 2024 Medicare Part D data, Dr. Hasl's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Omeprazole.
Has Dr. David Michael Hasl received payments from drug or device companies?
CMS Open Payments shows $12,171 in general payments to Dr. Hasl from 25 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. David Michael Hasl been practicing?
Dr. Hasl graduated from medical school in 1992, 34 years ago.
Selling to surgery practices?
See general surgeons in Ohio 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