Dr. Adam Maerz, MD

  • Olympia, WA
  • Colorectal surgeon
NPI1588195044PAC ID7012280449
Medicare services, 2024
111
Medicare patients, 2024
144
Part D claims, 2024
68
Hospital affiliations
3
Industry payments
$2,591
Practice address
3920 Capital Mall Drive Sw, Olympia, WA 98502
Practice phone
Call (360) 754-0287
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Olympia Multi-Specialty Clinic Procedure Center

Surgery Center - Medicare-Certified · Olympia, Washington

See all 6 affiliations

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Dr. Adam Maerz is a colorectal surgeon in Olympia, Washington

Dr. Maerz practices at Olympia Multi-Specialty Clinic Procedure Center in Olympia, Washington.

Dr. Maerz's NPI, 1588195044, was assigned on March 25, 2017. Dr. Maerz holds Illinois license 036.171098.

NPI and contact details
Medicare PAC ID
7012280449
NPI enumeration date
March 25, 2017
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(360) 754-0287
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Adam Maerz practices at Olympia Multi-Specialty Clinic Procedure Center in Olympia, Washington

Dr. Maerz's primary practice is Olympia Multi-Specialty Clinic Procedure Center, at 3920 Capital Mall Drive Sw, Olympia, WA 98502. The practice phone is (360) 754-0287.

  • Olympia Multi-Specialty Clinic Procedure Center
    3920 Capital Mall Drive Sw, Olympia, WA 98502Phone(360) 754-0287

Source: Dmand AI Affiliation Data

Dr. Adam Maerz is affiliated with 5 sites of care and 1 medical group

Dr. Maerz's primary practice is Olympia Multi-Specialty Clinic Procedure Center in Olympia, Washington. Dr. Maerz is also affiliated with Providence St. Peter Hospital. The medical group on file is MultiCare Capital Medical Center. Dmand AI also links Dr. Maerz to 2 more hospitals and 1 ambulatory surgery center, each named with a free account.

See all 6 affiliations for Dr. Maerz

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Adam Maerz's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maerz practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Olympia Multi-Specialty Clinic Procedure CenterAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Adam Maerz is one of 37 colorectal surgeons in Washington

Colon and rectal surgery is Dr. Maerz's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Maerz is licensed in Illinois.

Specialties and state licenses

  • Colon and rectal surgery, IllinoisPrimaryLicense 036.171098 · taxonomy 208C00000X

Colorectal surgeons near Dr. Maerz

Counts of colorectal 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. Adam Maerz billed Medicare for 111 services in 2024

CMS data shows 111 Medicare services from Dr. Maerz across 7 procedure codes in 2024, for 144 Medicare patients. Medicare paid $11,084 for them.

Medicare services, 2024111
Medicare patients144
Paid by Medicare$11,084
Procedure codes7

Dr. Maerz's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3162024: 6480%
Surgery
2023: 932024: 3068%
Other services
2023: 212024: 1719%

Where Dr. Maerz's Medicare services took place, 2024

  • In an office3027%
  • In a facility8173%

Dr. Maerz compared with the Washington median for colorectal surgeons, 2024

  • Dr. Maerz
  • Washington median
Medicare services
111vs 18239% below
Medicare patients
144vs 144Close to median
Part D claims
11vs 9188% below

Medians across 35 colorectal surgeons in Washington with Dmand AI profiles that report each measure.

Dr. Maerz'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Adam Maerz treated 144 Medicare patients in 2024, average age 73

CMS counts 144 Medicare patients who saw Dr. Maerz in 2024. The largest group is 65 to 74, with 67 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.34, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Maerz's median patient age at 68, with 56% women.

Medicare patients, 2024144
Average age73
Average risk score1.34
Also on Medicaid14%

Dr. Maerz's Medicare patients by age, 2024

Dr. Maerz's Medicare patients by sex, 2024

  • Women6747%
  • Men7753%

Chronic conditions among Dr. Maerz's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis39%
  4. Atrial fibrillation31%
  5. Anxiety30%
  6. Chronic kidney disease28%
  7. Diabetes28%
  8. Mood disorders28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Maerz's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women56%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Adam Maerz wrote 68 Medicare Part D claims in 2024

In 2024, Dr. Maerz wrote 68 Medicare Part D claims for 32 patients. 93% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $188 in total drug cost. In 2023, CMS named 50 claims across 3 drugs.

Part D claims, 202468
Drugs named by CMS1
Total drug cost$188
Part D patients32

Dr. Maerz's Part D claims by kind of drug, 2024

  • Generic63 claims93%
  • Brand-name and other5 claims7%

Dr. Maerz'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: 502024: 1178%

Drugs named by CMS: 1 in 2024, 3 in 2023.

See all prescribing by Dr. Maerz

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. Adam Maerz ranks in the 44th percentile for colonoscopy in Medicare

Dr. Maerz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 15 procedures of colonoscopy by Dr. Maerz, more than 44% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Maerz ranks in Medicare procedure volume

Colonoscopy
44th percentile15 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Skin biopsy: 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. Adam Maerz received $2,591 in industry payments from 2022 to 2025

CMS Open Payments shows 13 general payments to Dr. Maerz from 8 drug and device companies from 2022 to 2025. Education make up the largest share, 48% of the total. Intuitive Surgical, Inc. paid the most, $1,029.

General payments to Dr. Maerz by program year, 2022 to 2025

General payments to Dr. Maerz by kind, 2022 to 2025

$2.6Kin total
  • Education$1,23948%
  • Travel and lodging$88434%
  • Food and beverage$46818%

Companies that paid Dr. Maerz the most, 2022 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Maerz

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Adam Maerz's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Adam Maerz

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. Adam Maerz's NPI number?

Dr. Adam Maerz's NPI number is 1588195044. It was assigned on March 25, 2017, and it is active in the NPI Registry.

What kind of doctor is Dr. Adam Maerz?

Dr. Adam Maerz is a colorectal surgeon in Olympia, Washington. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).

Where does Dr. Adam Maerz practice?

Dr. Maerz practices at 3920 Capital Mall Drive Sw, Olympia, WA 98502. Dr. Maerz's primary practice is Olympia Multi-Specialty Clinic Procedure Center in Olympia, Washington. Dmand AI also links Dr. Maerz to 2 hospitals and 1 ambulatory surgery center.

What is Dr. Adam Maerz's office phone number?

The practice phone on file for Dr. Maerz is (360) 754-0287.

What is Dr. Adam Maerz's medical license number?

Dr. Maerz holds Illinois license 036.171098.

Which hospitals is Dr. Adam Maerz affiliated with?

Dr. Maerz is affiliated with Providence St. Peter Hospital. Dmand AI links Dr. Maerz to 2 more hospitals.

What medical group is Dr. Adam Maerz part of?

Dr. Maerz is linked to MultiCare Capital Medical Center.

Does Dr. Adam Maerz accept Medicare?

Yes. CMS data shows Dr. Maerz billed Medicare for 111 services in 2024, and Dr. Maerz accepts Medicare assignment.

How many Medicare patients does Dr. Adam Maerz see?

CMS counts 144 Medicare patients who saw Dr. Maerz in 2024, with an average age of 73.

What services does Dr. Adam Maerz bill to Medicare?

In 2024, Dr. Maerz's most billed Medicare services were hospital inpatient care (99232), surgery: digestive system (45385) and medicare service (G0121).

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What drugs does Dr. Adam Maerz prescribe most?

In 2024 Medicare Part D data, Dr. Maerz's most prescribed drugs by claims were Pantoprazole Sodium.

Has Dr. Adam Maerz received payments from drug or device companies?

CMS Open Payments shows $2,591 in general payments to Dr. Maerz from 8 companies from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Adam Maerz been practicing?

Dr. Maerz graduated from medical school in 2016, 10 years ago.

Selling to colon and rectal surgery practices?

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