Dr. Margaret Ann Hay, MD
- Medicare services, 2024
- 364
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 69
- Hospital affiliations
- 5
- Industry payments
- $978
- Practice address
- 274 Union Blvd, Lakewood, CO 80228
- Practice phone
- Call (303) 951-0600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Critical Care Pulmonary and Sleep Associates Professional
Lakewood, Colorado
Find Dr. Hay's professional email, personal email and mobile number
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Dr. Margaret Ann Hay is a pulmonologist in Lakewood, Colorado
Dr. Hay practices at Critical Care Pulmonary and Sleep Associates Professional in Lakewood, Colorado.
Dr. Hay's NPI, 1003347683, was assigned on March 24, 2017. Dr. Hay graduated from Ohio State University College of Medicine in 2017. Dr. Hay holds Colorado license 71056.
- NPI
- 1003347683NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830460526
- NPI enumeration date
- March 24, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (303) 951-0600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Margaret Ann Hay practices at Critical Care Pulmonary and Sleep Associates Professional in Lakewood, Colorado
Dr. Hay's primary practice is Critical Care Pulmonary and Sleep Associates Professional, at 274 Union Blvd, Lakewood, CO 80228 in Jefferson County. The practice phone is (303) 951-0600.
- Critical Care Pulmonary and Sleep Associates Professional274 Union Blvd, Lakewood, CO 80228 · Jefferson CountyPhone(303) 951-0600
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Margaret Ann Hay is affiliated with 8 sites of care and 2 medical groups
Dr. Hay's primary practice is Critical Care Pulmonary and Sleep Associates Professional in Lakewood, Colorado. Dr. Hay is also affiliated with CommonSpirit - St. Anthony Hospital. The medical group on file is Critical Care, Pulmonary and Sleep Associates. Dmand AI also links Dr. Hay to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Margaret Ann Hay's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hay practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Critical Care Pulmonary and Sleep Associates Professional | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Margaret Ann Hay is one of 254 pulmonologists in Colorado
Pulmonary disease is Dr. Hay's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Hay is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Hay is licensed in Colorado.
Specialties and state licenses
- Pulmonary disease, ColoradoPrimary
Pulmonologists near Dr. Hay
Counts of pulmonologists 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. Margaret Ann Hay billed Medicare for 364 services in 2024
CMS data shows 364 Medicare services from Dr. Hay across 6 procedure codes in 2024, for 133 Medicare patients. Medicare paid $31,911 for them.
Dr. Hay's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 762024: 222192%
- Tests and treatments
- 2023: 282024: 142407%
Where Dr. Hay's Medicare services took place, 2024
- In an office14239%
- In a facility22261%
Dr. Hay compared with the Colorado median for pulmonologists, 2024
- Dr. Hay
- Colorado median
- Medicare services
- 364vs 354Close to median
- Medicare patients
- 133vs 19532% below
- Part D claims
- 22vs 37694% below
Medians across 247 pulmonologists in Colorado with Dmand AI profiles that report each measure.
Dr. Hay'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hay and other pulmonologists in Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Margaret Ann Hay treated 133 Medicare patients in 2024, average age 71
CMS counts 133 Medicare patients who saw Dr. Hay in 2024. The largest group is 65 to 74, with 71 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 16% are also on Medicaid. Their average risk score is 2.62, 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. Hay's median patient age at 73, with 49% women.
Dr. Hay's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Hay's Medicare patients by sex, 2024
- Women5541%
- Men7859%
Chronic conditions among Dr. Hay's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Ischemic heart disease46%
- Arthritis45%
- Anxiety44%
- Chronic kidney disease44%
- Mood disorders38%
- Diabetes36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hay's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Margaret Ann Hay wrote 69 Medicare Part D claims in 2024
In 2024, Dr. Hay wrote 69 Medicare Part D claims for 24 patients. 65% of them were for generic drugs. CMS names the drug for 22 of them, across 1 drug with 11 or more claims each, at $14,124 in total drug cost. In 2021, CMS named 13 claims across 1 drug.
Dr. Hay's Part D claims by kind of drug, 2024
- Generic45 claims65%
- Brand-name24 claims35%
Dr. Hay's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 132022: 2269%
Drugs named by CMS: 1 in 2022, 1 in 2021.
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. Margaret Ann Hay offers telehealth to Medicare patients
Dr. Hay accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Hay as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Margaret Ann Hay received $978 in industry payments from 2022 to 2025
CMS Open Payments shows 25 general payments to Dr. Hay from 8 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Inari Medical, Inc. paid the most, $427.
General payments to Dr. Hay by program year, 2022 to 2025
Companies that paid Dr. Hay the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Margaret Ann Hay graduated from Ohio State University College of Medicine
Dr. Hay graduated from Ohio State University College of Medicine in 2017.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Sources for Dr. Margaret Ann Hay'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 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) |
| 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. Margaret Ann Hay
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. Margaret Ann Hay's NPI number?
Dr. Margaret Ann Hay's NPI number is 1003347683. It was assigned on March 24, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Margaret Ann Hay?
Dr. Margaret Ann Hay is a pulmonologist in Lakewood, Colorado. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Margaret Ann Hay practice?
Dr. Hay practices at 274 Union Blvd, Lakewood, CO 80228. Dr. Hay's primary practice is Critical Care Pulmonary and Sleep Associates Professional in Lakewood, Colorado. Dmand AI also links Dr. Hay to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Margaret Ann Hay's office phone number?
The practice phone on file for Dr. Hay is (303) 951-0600.
What is Dr. Margaret Ann Hay's medical license number?
Dr. Hay holds Colorado license 71056.
Which hospitals is Dr. Margaret Ann Hay affiliated with?
Dr. Hay is affiliated with CommonSpirit - St. Anthony Hospital. Dmand AI links Dr. Hay to 4 more hospitals.
What medical group is Dr. Margaret Ann Hay part of?
Dr. Hay is linked to Critical Care, Pulmonary and Sleep Associates. Dmand AI links Dr. Hay to 1 more medical group.
Does Dr. Margaret Ann Hay accept Medicare?
Yes. CMS data shows Dr. Hay billed Medicare for 364 services in 2024, and Dr. Hay accepts Medicare assignment.
Does Dr. Margaret Ann Hay offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Hay as offering telehealth services.
How many Medicare patients does Dr. Margaret Ann Hay see?
CMS counts 133 Medicare patients who saw Dr. Hay in 2024, with an average age of 71.
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Is Dr. Margaret Ann Hay board certified?
Yes. Dr. Hay is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Margaret Ann Hay bill to Medicare?
In 2024, Dr. Hay's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and lung function service (94729).
Where did Dr. Margaret Ann Hay go to medical school?
Dr. Hay graduated from Ohio State University College of Medicine in 2017.
What drugs does Dr. Margaret Ann Hay prescribe most?
In 2022 Medicare Part D data, Dr. Hay's most prescribed drugs by claims were Trelegy Ellipta.
Has Dr. Margaret Ann Hay received payments from drug or device companies?
CMS Open Payments shows $978 in general payments to Dr. Hay from 8 companies from 2022 to 2025. The largest total came from Inari Medical, Inc.
How long has Dr. Margaret Ann Hay been practicing?
Dr. Hay graduated from medical school in 2017, 9 years ago.
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