Dr. Warren Bradley Fields, MD
- Medicare services, 2024
- 2,638
- Medicare patients, 2024
- 570
- Part D claims, 2024
- 2,248
- Hospital affiliations
- 4
- Industry payments
- $15,509
- Practice address
- 26657 Woodward Ave, Huntington Woods, MI 48070
- Practice phone
- Call (248) 548-2114
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greenberger Wu Dunn & Fields
Huntington Woods, Michigan
Find Dr. Fields' 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. Warren Bradley Fields is a pulmonologist in Huntington Woods, Michigan
Dr. Fields practices at Greenberger Wu Dunn & Fields in Huntington Woods, Michigan.
Dr. Fields' NPI, 1225158694, was assigned on March 30, 2007. Dr. Fields graduated from Indiana University School of Medicine in 2000. Dr. Fields holds Michigan license 4301076558.
- NPI
- 1225158694NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406929231
- NPI enumeration date
- March 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (248) 548-2114
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Warren Bradley Fields practices at Greenberger Wu Dunn & Fields in Huntington Woods, Michigan
Dr. Fields' primary practice is Greenberger Wu Dunn & Fields, at 26657 Woodward Ave, Huntington Woods, MI 48070 in Oakland County. The practice phone is (248) 548-2114.
- Greenberger Wu Dunn & Fields26657 Woodward Ave, Huntington Woods, MI 48070 · Oakland CountyPhone(248) 548-2114
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Warren Bradley Fields is affiliated with 7 sites of care and 3 medical groups
Dr. Fields' primary practice is Greenberger Wu Dunn & Fields in Huntington Woods, Michigan. Dr. Fields is also affiliated with Corewell Health William Beaumont University Hospital. The medical group on file is Greenberger Wu Dunn & Fields PLLC. Dmand AI also links Dr. Fields to 3 more hospitals, 2 group practices and clinics and 2 medical groups, 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. Warren Bradley Fields' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fields practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greenberger Wu Dunn & Fields | Available with a free account |
| +6 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Warren Bradley Fields is one of 451 pulmonologists in Michigan
Pulmonary disease is Dr. Fields' primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Fields' licenses on file in 2 states: Michigan and Illinois.
Specialties and state licenses
- Pulmonary disease, MichiganPrimary
- Illinois license
Pulmonologists near Dr. Fields
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. Warren Bradley Fields billed Medicare for 2,638 services in 2024
CMS data shows 2,638 Medicare services from Dr. Fields across 15 procedure codes in 2024, for 570 Medicare patients. Medicare paid $190,753 for them.
Dr. Fields' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2,0682024: 1,80913%
- Tests and treatments
- 2023: 7252024: 80010%
- Other services
- 2023: 02024: 17
- Surgery
- 2023: 362024: 1267%
Where Dr. Fields' Medicare services took place, 2024
- In an office1,46956%
- In a facility1,16944%
Dr. Fields compared with the Michigan median for pulmonologists, 2024
- Dr. Fields
- Michigan median
- Medicare services
- 2,638vs 6064.4 times
- Medicare patients
- 570vs 2792.0 times
- Part D claims
- 2,120vs 4334.9 times
Medians across 437 pulmonologists in Michigan with Dmand AI profiles that report each measure.
Dr. Fields' 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. Fields and other pulmonologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Warren Bradley Fields treated 570 Medicare patients in 2024, average age 76
CMS counts 570 Medicare patients who saw Dr. Fields in 2024. The largest group is 75 to 84, with 232 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 2.32, 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. Fields' median patient age at 72, with 56% women.
Dr. Fields' Medicare patients by age, 2024
Dr. Fields' Medicare patients by sex, 2024
- Women32256%
- Men24844%
Chronic conditions among Dr. Fields' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease58%
- COPD56%
- Arthritis54%
- Chronic kidney disease45%
- Heart failure45%
- Atrial fibrillation41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fields' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Warren Bradley Fields wrote 2,248 Medicare Part D claims in 2024
In 2024, Dr. Fields wrote 2,248 Medicare Part D claims for 366 patients. 52% of them were for generic drugs. CMS names the drug for 2,120 of them, across 39 drugs with 11 or more claims each, at $842,744 in total drug cost. In 2023, CMS named 1,732 claims across 32 drugs.
Dr. Fields' Part D claims by kind of drug, 2024
- Generic1,163 claims52%
- Brand-name and other1,085 claims48%
Dr. Fields' 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. Fields' Part D claims, 2024
- Antibiotics7%163 of 2,248 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: 1,7322024: 2,12022%
Drugs named by CMS: 39 in 2024, 32 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. Warren Bradley Fields takes part in Medicare
Dr. Fields 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. Warren Bradley Fields received $15,509 in industry payments from 2016 to 2025
CMS Open Payments shows 861 general payments to Dr. Fields from 50 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. GlaxoSmithKline, LLC. paid the most, $3,494.
General payments to Dr. Fields by program year, 2016 to 2025
General payments to Dr. Fields by kind, 2016 to 2025
- Food and beverage$14,24192%
- Speaker and faculty fees$1,1507%
- Education$1181%
Companies that paid Dr. Fields 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. Warren Bradley Fields graduated from Indiana University School of Medicine
Dr. Fields graduated from Indiana University School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Warren Bradley Fields'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. Warren Bradley Fields
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. Warren Bradley Fields' NPI number?
Dr. Warren Bradley Fields' NPI number is 1225158694. It was assigned on March 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Warren Bradley Fields?
Dr. Warren Bradley Fields is a pulmonologist in Huntington Woods, Michigan. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Warren Bradley Fields practice?
Dr. Fields practices at 26657 Woodward Ave, Huntington Woods, MI 48070. Dr. Fields' primary practice is Greenberger Wu Dunn & Fields in Huntington Woods, Michigan. Dmand AI also links Dr. Fields to 3 hospitals, 2 group practices and clinics and 2 medical groups.
What is Dr. Warren Bradley Fields' office phone number?
The practice phone on file for Dr. Fields is (248) 548-2114.
What is Dr. Warren Bradley Fields' medical license number?
Dr. Fields holds Michigan license 4301076558, one of the licenses on file in 2 states.
Which states has Dr. Warren Bradley Fields been licensed in?
Dmand AI has state licenses on file for Dr. Fields in Michigan and Illinois.
Which hospitals is Dr. Warren Bradley Fields affiliated with?
Dr. Fields is affiliated with Corewell Health William Beaumont University Hospital. Dmand AI links Dr. Fields to 3 more hospitals.
What medical group is Dr. Warren Bradley Fields part of?
Dr. Fields is linked to Greenberger Wu Dunn & Fields PLLC. Dmand AI links Dr. Fields to 2 more medical groups.
Does Dr. Warren Bradley Fields accept Medicare?
Yes. CMS data shows Dr. Fields billed Medicare for 2,638 services in 2024, and Dr. Fields accepts Medicare assignment.
How many Medicare patients does Dr. Warren Bradley Fields see?
CMS counts 570 Medicare patients who saw Dr. Fields in 2024, with an average age of 76.
Show 5 more questionsShow fewer questions
What services does Dr. Warren Bradley Fields bill to Medicare?
In 2024, Dr. Fields' most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99233).
Where did Dr. Warren Bradley Fields go to medical school?
Dr. Fields graduated from Indiana University School of Medicine in 2000.
What drugs does Dr. Warren Bradley Fields prescribe most?
In 2024 Medicare Part D data, Dr. Fields' most prescribed drugs by claims were Albuterol Sulfate Hfa, Trelegy Ellipta and Prednisone.
Has Dr. Warren Bradley Fields received payments from drug or device companies?
CMS Open Payments shows $15,509 in general payments to Dr. Fields from 50 companies from 2016 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Warren Bradley Fields been practicing?
Dr. Fields graduated from medical school in 2000, 26 years ago.
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