Ann Allergy Asthma Immunol
Dr. Mark Marshall Millar, MD
- Medicare services, 2024
- 2,350
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 2,498
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 1179 E Paris SE Ave, Grand Rapids, MI 49546
- Practice phone
- Call (616) 957-1912
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Allergy & Asthma Care of W Mi
Grand Rapids, Michigan
Find Dr. Millar'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. Mark Marshall Millar is an allergist and immunologist in Grand Rapids, Michigan
Dr. Millar practices at Allergy & Asthma Care of W Mi in Grand Rapids, Michigan.
Dr. Millar's NPI, 1962627802, was assigned on April 16, 2007. Dr. Millar graduated from Feinberg School of Medicine in 1993. Dr. Millar holds Michigan license 4301071401.
- NPI
- 1962627802NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779543160
- NPI enumeration date
- April 16, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (616) 957-1912
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Marshall Millar practices at Allergy & Asthma Care of W Mi in Grand Rapids, Michigan
Dr. Millar's primary practice is Allergy & Asthma Care of W Mi, at 1179 E Paris SE Ave, Grand Rapids, MI 49546 in Kent County. The practice phone is (616) 957-1912.
- Allergy & Asthma Care of W Mi1179 E Paris SE Ave, Grand Rapids, MI 49546 · Kent CountyPhone(616) 957-1912
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Marshall Millar is affiliated with 4 sites of care
Dr. Millar's primary practice is Allergy & Asthma Care of W Mi in Grand Rapids, Michigan. Dr. Millar is also affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. Dmand AI also links Dr. Millar to 1 more hospital and 1 physician office, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Marshall Millar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Millar practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allergy & Asthma Care of W Mi | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Marshall Millar is one of 118 allergists and immunologists in Michigan
Allergy and immunology is Dr. Millar's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Millar is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Millar's licenses on file in 2 states: Michigan and Illinois.
Specialties and state licenses
- Allergy and immunology, MichiganPrimary
- Illinois license
Clinical focus
Dmand AI lists asthma, chronic nasal allergies and hives among the conditions Dr. Millar treats.
Allergists and immunologists near Dr. Millar
Counts of allergists and immunologists 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. Mark Marshall Millar billed Medicare for 2,350 services in 2024
CMS data shows 2,350 Medicare services from Dr. Millar across 8 procedure codes in 2024, for 124 Medicare patients. Medicare paid $19,683 for them. Every service was in an office.
Dr. Millar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,5662024: 2,21942%
- Office and hospital visits
- 2023: 1212024: 1318%
Dr. Millar compared with the Michigan median for allergists and immunologists, 2024
- Dr. Millar
- Michigan median
- Medicare services
- 2,350vs 1,0062.3 times
- Medicare patients
- 124vs 10419% above
- Part D claims
- 2,374vs 3846.2 times
Medians across 120 allergists and immunologists in Michigan with Dmand AI profiles that report each measure.
Dr. Millar'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. Millar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Millar and other allergists and immunologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Marshall Millar treated 124 Medicare patients in 2024, average age 69
CMS counts 124 Medicare patients who saw Dr. Millar in 2024. The largest group is 65 to 74, with 71 patients. 64% of them have high cholesterol, and 59% have high blood pressure. 13% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Millar's median patient age at 42, with 62% women.
Dr. Millar's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Millar's Medicare patients by sex, 2024
- Women7964%
- Men4536%
Chronic conditions among Dr. Millar's Medicare patients, 2024
- High cholesterol64%
- High blood pressure59%
- Arthritis53%
- Asthma39%
- Mood disorders30%
- Anxiety25%
- Depression23%
- Diabetes20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Millar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Marshall Millar wrote 2,498 Medicare Part D claims in 2024
In 2024, Dr. Millar wrote 2,498 Medicare Part D claims for 407 patients. 78% of them were for generic drugs. CMS names the drug for 2,374 of them, across 28 drugs with 11 or more claims each, at $280,548 in total drug cost. In 2023, CMS named 2,325 claims across 28 drugs.
Dr. Millar's Part D claims by kind of drug, 2024
- Generic1,936 claims78%
- Brand-name562 claims22%
Dr. Millar'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. Millar's Part D claims, 2024
- Antibiotics3%69 of 2,498 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: 2,3252024: 2,3742%
Drugs named by CMS: 28 in 2024, 28 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
How Dr. Mark Marshall Millar takes part in Medicare
Dr. Millar 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. Mark Marshall Millar has 3 publications on record
Dmand AI links 3 papers to Dr. Millar. Dr. Millar has published most often in Ann Allergy Asthma Immunol. Dr. Millar's most frequent co-author is Kris G. McGrath, MD.
Dr. Millar's most frequent co-authors
- Kris G. McGrath, MD1 shared paper
Recent publications by Dr. Millar
Ann Allergy Asthma Immunol
Ann Allergy Asthma Immunol
See who Dr. Millar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Millar works with, so you can find a warm path to the right allergists and immunologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Marshall Millar received $239 in industry payments from 2017 to 2025
CMS Open Payments shows 17 general payments to Dr. Millar from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 83% of the total. Novartis Pharmaceuticals Corporation paid the most, $199.
General payments to Dr. Millar by program year, 2017 to 2025
General payments to Dr. Millar by kind, 2017 to 2025
- Food and beverage$19983%
- Education$4017%
Companies that paid Dr. Millar the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Marshall Millar has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Millar, most recently Regional Top Doctor in 2014.
Awards and honors for Dr. Millar
- 2014
- Regional Top Doctor
- Undated
- AAAAI Fellow
- Fellow (FACAAI)
Source: Dmand AI Professional Profile Data
Dr. Mark Marshall Millar graduated from Feinberg School of Medicine
Dr. Millar graduated from Feinberg School of Medicine in 1993. Dr. Millar is a member of AAAAI and ACP.
- Medical school
- Board certified in allergy & immunology
Source: Dmand AI Professional Profile Data
Dr. Mark Marshall Millar accepts plans from 18 insurance carriers
Dr. Millar is in network with 18 carriers, including Aetna, Health Alliance Plan and Priority Health. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
- Aetna
- Health Alliance Plan
- Priority Health
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Molina
- +10 more carriersWith a free account
Plan types Dr. Millar accepts, by number of carriers
- PPO12
- Medicare11
- HMO10
- EPO5
- POS5
- Medicaid3
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark Marshall Millar'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Mark Marshall Millar
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. Mark Marshall Millar's NPI number?
Dr. Mark Marshall Millar's NPI number is 1962627802. It was assigned on April 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Marshall Millar?
Dr. Mark Marshall Millar is an allergist and immunologist in Grand Rapids, Michigan. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Mark Marshall Millar practice?
Dr. Millar practices at 1179 E Paris SE Ave, Grand Rapids, MI 49546. Dr. Millar's primary practice is Allergy & Asthma Care of W Mi in Grand Rapids, Michigan. Dmand AI also links Dr. Millar to 1 hospital and 1 physician office.
What is Dr. Mark Marshall Millar's office phone number?
The practice phone on file for Dr. Millar is (616) 957-1912.
What is Dr. Mark Marshall Millar's medical license number?
Dr. Millar holds Michigan license 4301071401, one of the licenses on file in 2 states.
Which states has Dr. Mark Marshall Millar been licensed in?
Dmand AI has state licenses on file for Dr. Millar in Michigan (1997 to 2026) and Illinois (1993 to 2005).
Which hospitals is Dr. Mark Marshall Millar affiliated with?
Dr. Millar is affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. Dmand AI links Dr. Millar to 1 more hospital.
Does Dr. Mark Marshall Millar accept Medicare?
Yes. CMS data shows Dr. Millar billed Medicare for 2,350 services in 2024, and Dr. Millar accepts Medicare assignment.
How many Medicare patients does Dr. Mark Marshall Millar see?
CMS counts 124 Medicare patients who saw Dr. Millar in 2024, with an average age of 69.
Is Dr. Mark Marshall Millar board certified?
Yes. Dr. Millar is board certified in allergy & immunology by the American Board of Allergy and Immunology.
Show 8 more questionsShow fewer questions
What services does Dr. Mark Marshall Millar bill to Medicare?
In 2024, Dr. Millar's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Mark Marshall Millar go to medical school?
Dr. Millar graduated from Feinberg School of Medicine in 1993.
What drugs does Dr. Mark Marshall Millar prescribe most?
In 2024 Medicare Part D data, Dr. Millar's most prescribed drugs by claims were Levocetirizine Dihydrochloride, Azelastine HCl and Montelukast Sodium.
Has Dr. Mark Marshall Millar received payments from drug or device companies?
CMS Open Payments shows $239 in general payments to Dr. Millar from 3 companies from 2017 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Mark Marshall Millar been practicing?
Dr. Millar graduated from medical school in 1993, 33 years ago.
Does Dr. Mark Marshall Millar do research?
Dmand AI links 3 publications to Dr. Millar.
Who does Dr. Mark Marshall Millar publish with?
Dr. Millar's most frequent co-authors are Kris G. McGrath, MD (1 shared paper).
What insurance does Dr. Mark Marshall Millar accept?
Dr. Millar is in network with 18 carriers, including Aetna, Health Alliance Plan and Priority Health. PPO plans come from the most carriers, 12. Check the plan with the practice before a visit.
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