Dr. Michael Layman Hartmeyer, MD
- Medicare services, 2024
- 25
- Medicare patients, 2024
- 121
- Hospital affiliations
- 2
- Industry payments
- $41
- Medical groups
- 2
- Practice address
- 1015 Nw 22nd Avenue, W121, Portland, OR 97210
- Practice phone
- Call (503) 413-7682
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hartmeyer'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. Michael Layman Hartmeyer is an anesthesiologist in Portland, Oregon
Dr. Hartmeyer practices at Legacy Good Samaritan Medical Center in Portland, Oregon, part of Legacy Health.
Dr. Hartmeyer's NPI, 1629160908, was assigned on September 28, 2006. Dr. Hartmeyer graduated from University of Oklahoma College of Medicine in 2002. Dr. Hartmeyer holds Oregon license MD26649.
- NPI
- 1629160908NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365524485
- NPI enumeration date
- September 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 413-7682
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Layman Hartmeyer practices at Legacy Good Samaritan Medical Center in Portland, Oregon
Dr. Hartmeyer's primary practice is Legacy Good Samaritan Medical Center, at 1015 Nw 22nd Avenue, W121, Portland, OR 97210 in Multnomah County. The practice phone is (503) 413-7682.
- Legacy Good Samaritan Medical Center1015 Nw 22nd Avenue, W121, Portland, OR 97210 · Multnomah CountyPhone(503) 413-7682
Source: Dmand AI Affiliation Data
Dr. Michael Layman Hartmeyer is affiliated with 4 sites of care and 2 medical groups
Dr. Hartmeyer's primary practice is Legacy Good Samaritan Medical Center in Portland, Oregon, part of Legacy Health. Dr. Hartmeyer is also affiliated with Legacy Meridian Park Medical Center. The medical group on file is Oregon Anesthesiology Group. Dmand AI also links Dr. Hartmeyer 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. Michael Layman Hartmeyer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hartmeyer practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Legacy Good Samaritan 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
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Dr. Michael Layman Hartmeyer is one of 797 anesthesiologists in Oregon
Anesthesiology is Dr. Hartmeyer's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Hartmeyer is licensed in Oregon.
Specialties and state licenses
- Anesthesiology, OregonPrimary
Anesthesiologists near Dr. Hartmeyer
Counts of anesthesiologists 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. Michael Layman Hartmeyer billed Medicare for 25 services in 2024
CMS data shows 25 Medicare services from Dr. Hartmeyer across 2 procedure codes in 2024, for 121 Medicare patients. Medicare paid $2,947 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Hartmeyer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 652024: 2562%
Dr. Hartmeyer compared with the Oregon median for anesthesiologists, 2024
- Dr. Hartmeyer
- Oregon median
- Medicare services
- 25vs 3936% below
- Medicare patients
- 121vs 9232% above
Medians across 720 anesthesiologists in Oregon with Dmand AI profiles that report each measure.
Dr. Hartmeyer'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. Hartmeyer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hartmeyer and other anesthesiologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Layman Hartmeyer treated 121 Medicare patients in 2024, average age 71
CMS counts 121 Medicare patients who saw Dr. Hartmeyer in 2024. The largest group is 65 to 74, with 58 patients. 69% of them have high blood pressure, and 67% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.61, 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. Hartmeyer's median patient age at 58, with 58% women.
Dr. Hartmeyer's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hartmeyer's Medicare patients by sex, 2024
- Women6554%
- Men5646%
Chronic conditions among Dr. Hartmeyer's Medicare patients, 2024
- High blood pressure69%
- High cholesterol67%
- Arthritis45%
- Chronic kidney disease31%
- Diabetes30%
- Anxiety29%
- Mood disorders29%
- Depression26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hartmeyer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Michael Layman Hartmeyer takes part in Medicare
Dr. Hartmeyer 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. Michael Layman Hartmeyer received $41 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Hartmeyer from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Becton, Dickinson and Company paid the most, $41.
Companies that paid Dr. Hartmeyer the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Layman Hartmeyer graduated from University of Oklahoma College of Medicine
Dr. Hartmeyer graduated from University of Oklahoma College of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Layman Hartmeyer'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) |
| 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. Michael Layman Hartmeyer
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. Michael Layman Hartmeyer's NPI number?
Dr. Michael Layman Hartmeyer's NPI number is 1629160908. It was assigned on September 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Layman Hartmeyer?
Dr. Michael Layman Hartmeyer is an anesthesiologist in Portland, Oregon. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Michael Layman Hartmeyer practice?
Dr. Hartmeyer practices at 1015 Nw 22nd Avenue, W121, Portland, OR 97210. Dr. Hartmeyer's primary practice is Legacy Good Samaritan Medical Center in Portland, Oregon, part of Legacy Health. Dmand AI also links Dr. Hartmeyer to 2 group practices and clinics and 1 medical group.
What is Dr. Michael Layman Hartmeyer's office phone number?
The practice phone on file for Dr. Hartmeyer is (503) 413-7682.
What is Dr. Michael Layman Hartmeyer's medical license number?
Dr. Hartmeyer holds Oregon license MD26649.
Which hospitals is Dr. Michael Layman Hartmeyer affiliated with?
Dr. Hartmeyer practices at Legacy Good Samaritan Medical Center in Portland, Oregon. Dr. Hartmeyer is also affiliated with Legacy Meridian Park Medical Center.
What medical group is Dr. Michael Layman Hartmeyer part of?
Dr. Hartmeyer is linked to Oregon Anesthesiology Group. Dmand AI links Dr. Hartmeyer to 1 more medical group.
Does Dr. Michael Layman Hartmeyer accept Medicare?
Yes. CMS data shows Dr. Hartmeyer billed Medicare for 25 services in 2024, and Dr. Hartmeyer accepts Medicare assignment.
How many Medicare patients does Dr. Michael Layman Hartmeyer see?
CMS counts 121 Medicare patients who saw Dr. Hartmeyer in 2024, with an average age of 71.
What services does Dr. Michael Layman Hartmeyer bill to Medicare?
In 2024, Dr. Hartmeyer's most billed Medicare services were anesthesia (00142) and anesthesia (00731).
Show 3 more questionsShow fewer questions
Where did Dr. Michael Layman Hartmeyer go to medical school?
Dr. Hartmeyer graduated from University of Oklahoma College of Medicine in 2002.
Has Dr. Michael Layman Hartmeyer received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Dr. Hartmeyer from 1 company from 2025 to 2025. The largest total came from Becton, Dickinson and Company.
How long has Dr. Michael Layman Hartmeyer been practicing?
Dr. Hartmeyer graduated from medical school in 2002, 24 years ago.
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