Dr. Richard W. Maack, MD
- Medicare services, 2024
- 222
- Medicare patients, 2024
- 103
- Part D claims, 2024
- 131
- MIPS score, 2024
- 79
- Hospital affiliations
- 1
- Practice address
- 17050 Baxter Road, Suite 110, Chesterfield, MO 63005
- Practice phone
- Call (636) 537-0122
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chesterfield Surgery Center
Surgery Center - Medicare-Certified · Chesterfield, Missouri
Find Dr. Maack's professional email, personal email and mobile number
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Dr. Richard W. Maack is an otolaryngology/facial plastic surgery physician in Chesterfield, Missouri
Dr. Maack practices at Chesterfield Surgery Center in Chesterfield, Missouri.
Dr. Maack's NPI, 1205825031, was assigned on October 14, 2005. Dr. Maack graduated from University of Maryland School of Medicine in 1985. Dr. Maack holds Missouri license MD R2G99.
- NPI
- 1205825031NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234195793
- NPI enumeration date
- October 14, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (636) 537-0122
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard W. Maack practices at Chesterfield Surgery Center in Chesterfield, Missouri
Dr. Maack's primary practice is Chesterfield Surgery Center, at 17050 Baxter Road, Suite 110, Chesterfield, MO 63005. The practice phone is (636) 537-0122.
- Chesterfield Surgery Center17050 Baxter Road, Suite 110, Chesterfield, MO 63005Phone(636) 537-0122
Source: Dmand AI Affiliation Data
Dr. Richard W. Maack is affiliated with 4 sites of care and 2 medical groups
Dr. Maack's primary practice is Chesterfield Surgery Center in Chesterfield, Missouri. Dr. Maack is also affiliated with St. Luke's Hospital. The medical group on file is Urology of St. Louis. Dmand AI also links Dr. Maack 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. Richard W. Maack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maack practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chesterfield Surgery 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. Richard W. Maack is one of 13 otolaryngology/facial plastic surgery physicians in Missouri
Otolaryngology/facial plastic surgery is Dr. Maack's primary specialty in the NPI Registry, under taxonomy code 207YX0905X. Dr. Maack is licensed in Missouri.
Specialties and state licenses
- Otolaryngology/facial plastic surgery, MissouriPrimary
Otolaryngology/facial plastic surgery physicians near Dr. Maack
Counts of otolaryngology/facial plastic surgery physicians 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. Richard W. Maack billed Medicare for 222 services in 2024
CMS data shows 222 Medicare services from Dr. Maack across 10 procedure codes in 2024, for 103 Medicare patients. Medicare paid $37,791 for them.
Dr. Maack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 992024: 14243%
- Office and hospital visits
- 2023: 562024: 8043%
Where Dr. Maack's Medicare services took place, 2024
- In an office13259%
- In a facility9041%
Dr. Maack compared with the Missouri median for otolaryngology/facial plastic surgery physicians, 2024
- Dr. Maack
- Missouri median
- Medicare services
- 222vs 59663% below
- Medicare patients
- 103vs 30867% below
- Part D claims
- 82vs 909% below
Medians across 17 otolaryngology/facial plastic surgery physicians in Missouri with Dmand AI profiles that report each measure.
Dr. Maack'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. Maack?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maack and other otolaryngology/facial plastic surgery physicians in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard W. Maack treated 103 Medicare patients in 2024, average age 73
CMS counts 103 Medicare patients who saw Dr. Maack in 2024. The largest group is 65 to 74, with 60 patients. 69% of them have high cholesterol, and 61% have high blood pressure. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maack's median patient age at 55, with 61% women.
Dr. Maack's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maack's Medicare patients by sex, 2024
- Women6159%
- Men4241%
Chronic conditions among Dr. Maack's Medicare patients, 2024
- High cholesterol69%
- High blood pressure61%
- Arthritis51%
- Mood disorders27%
- Depression25%
- Anxiety22%
- Cancer17%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women61%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Richard W. Maack wrote 131 Medicare Part D claims in 2024
In 2024, Dr. Maack wrote 131 Medicare Part D claims for 79 patients. 99% of them were for generic drugs. CMS names the drug for 82 of them, across 4 drugs with 11 or more claims each, at $712 in total drug cost. In 2023, CMS named 90 claims across 5 drugs.
Dr. Maack's Part D claims by kind of drug, 2024
- Generic130 claims99%
- Brand-name and other1 claims1%
Dr. Maack'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. Maack's Part D claims, 2024
- Opioids27%35 of 131 claims
- Antibiotics37%48 of 131 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: 902024: 829%
Drugs named by CMS: 4 in 2024, 5 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. Richard W. Maack scored 79 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Maack for performance year 2024, reported as part of a group. Dr. Maack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 39 procedures of melanoma (skin cancer) excision by Dr. Maack, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Maack's MIPS scores, performance year 2024
- 79of 100Final score
- 55.7of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Maack ranks in Medicare procedure volume
- Melanoma (skin cancer) excision
- 84th percentile39 procedures
- Skin biopsy
- 64th percentile25 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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)
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Dr. Richard W. Maack received $22,616 in industry payments from 2016 to 2025
CMS Open Payments shows 316 general payments to Dr. Maack from 32 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 55% of the total. Abbvie Inc. paid the most, $6,251.
General payments to Dr. Maack by program year, 2016 to 2025
General payments to Dr. Maack by kind, 2016 to 2025
- Food and beverage$12,42455%
- Speaker and faculty fees$6,83730%
- Travel and lodging$2,97313%
- Gifts$1651%
- Other$2171%
Companies that paid Dr. Maack 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. Richard W. Maack graduated from University of Maryland School of Medicine
Dr. Maack graduated from University of Maryland School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Richard W. Maack'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. Richard W. Maack
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. Richard W. Maack's NPI number?
Dr. Richard W. Maack's NPI number is 1205825031. It was assigned on October 14, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard W. Maack?
Dr. Richard W. Maack is an otolaryngology/facial plastic surgery physician in Chesterfield, Missouri. The primary specialty in the NPI Registry is Otolaryngology/Facial Plastic Surgery Physician (taxonomy code 207YX0905X).
Where does Dr. Richard W. Maack practice?
Dr. Maack practices at 17050 Baxter Road, Suite 110, Chesterfield, MO 63005. Dr. Maack's primary practice is Chesterfield Surgery Center in Chesterfield, Missouri. Dmand AI also links Dr. Maack to 2 group practices and clinics and 1 medical group.
What is Dr. Richard W. Maack's office phone number?
The practice phone on file for Dr. Maack is (636) 537-0122.
What is Dr. Richard W. Maack's medical license number?
Dr. Maack holds Missouri license MD R2G99.
Which hospitals is Dr. Richard W. Maack affiliated with?
Dr. Maack is affiliated with St. Luke's Hospital.
What medical group is Dr. Richard W. Maack part of?
Dr. Maack is linked to Urology of St. Louis. Dmand AI links Dr. Maack to 1 more medical group.
Does Dr. Richard W. Maack accept Medicare?
Yes. CMS data shows Dr. Maack billed Medicare for 222 services in 2024, and Dr. Maack accepts Medicare assignment.
What is Dr. Richard W. Maack's MIPS score?
Dr. Maack's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.
How many Medicare patients does Dr. Richard W. Maack see?
CMS counts 103 Medicare patients who saw Dr. Maack in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Richard W. Maack bill to Medicare?
In 2024, Dr. Maack's most billed Medicare services were surgery: skin and soft tissue (15004), surgery: lungs and airway (31231) and office visit, established patient (99213).
Where did Dr. Richard W. Maack go to medical school?
Dr. Maack graduated from University of Maryland School of Medicine in 1985.
What drugs does Dr. Richard W. Maack prescribe most?
In 2024 Medicare Part D data, Dr. Maack's most prescribed drugs by claims were Cefdinir, Tramadol HCl-Acetaminophen and Hydrocodone-Acetaminophen.
Has Dr. Richard W. Maack received payments from drug or device companies?
CMS Open Payments shows $22,616 in general payments to Dr. Maack from 32 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Richard W. Maack been practicing?
Dr. Maack graduated from medical school in 1985, 41 years ago.
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