Am J Kidney Dis
Glomerulonephritis, MembranousImmunoglobulin GNephritis, Interstitial
Dr. Gregory H. Downer, MD
NPI1285635367PAC ID5890692453
- Medicare services, 2024
- 824
- Medicare patients, 2024
- 379
- Part D claims, 2024
- 1,332
- Publications
- 1
- Hospital affiliations
- 5
- Practice address
- 3890 Park Central N Blvd, Pompano Beach, FL 33064
- Practice phone
- Call (231) 737-0075
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Muskegon Dialysis
Pompano Beach, Florida
Find Dr. Downer's professional email, personal email and mobile number
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Dr. Gregory H. Downer is a nephrologist in Pompano Beach, Florida
Dr. Downer practices at Muskegon Dialysis in Pompano Beach, Florida.
Dr. Downer's NPI, 1285635367, was assigned on August 10, 2005. Dr. Downer graduated from Indiana University School of Medicine in 1981. Dr. Downer holds Michigan license 4301048039.
NPI and contact details
- NPI
- 1285635367NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890692453
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (231) 737-0075
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory H. Downer practices at Muskegon Dialysis in Pompano Beach, Florida
Dr. Downer's primary practice is Muskegon Dialysis, at 3890 Park Central N Blvd, Pompano Beach, FL 33064 in Broward County. The practice phone is (231) 737-0075.
- Muskegon Dialysis3890 Park Central N Blvd, Pompano Beach, FL 33064 · Broward CountyPhone(231) 737-0075
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Gregory H. Downer is affiliated with 12 sites of care and 1 medical group
Dr. Downer's primary practice is Muskegon Dialysis in Pompano Beach, Florida. Dr. Downer is also affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. The medical group on file is West Michigan Nephrology. Dmand AI also links Dr. Downer to 4 more hospitals, 5 dialysis centers and 1 group practice or clinic, each named with a free account.
Muskegon DialysisPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory H. Downer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Downer practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Muskegon Dialysis | Available with a free account |
| +11 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory H. Downer is one of 917 nephrologists in Florida
Nephrology is Dr. Downer's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Downer is licensed in Michigan.
Specialties and state licenses
- Nephrology, MichiganPrimary
Nephrologists near Dr. Downer
Counts of nephrologists 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. Gregory H. Downer billed Medicare for 824 services in 2024
CMS data shows 824 Medicare services from Dr. Downer across 7 procedure codes in 2024, for 379 Medicare patients. Medicare paid $89,287 for them.
Medicare services, 2024824
Medicare patients379
Paid by Medicare$89,287
Procedure codes7
Dr. Downer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5922024: 53510%
- Tests and treatments
- 2023: 4852024: 28940%
- Lab and pathology
- 2023: 212024: 0100%
Where Dr. Downer's Medicare services took place, 2024
- In an office41450%
- In a facility41050%
Dr. Downer compared with the Florida median for nephrologists, 2024
- Dr. Downer
- Florida median
- Medicare services
- 824vs 1,49045% below
- Medicare patients
- 379vs 387Close to median
- Part D claims
- 1,061vs 93414% above
Medians across 882 nephrologists in Florida with Dmand AI profiles that report each measure.
Dr. Downer'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. Downer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Downer and other nephrologists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory H. Downer treated 379 Medicare patients in 2024, average age 70
CMS counts 379 Medicare patients who saw Dr. Downer in 2024. The largest group is 65 to 74, with 115 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 33% are also on Medicaid. Their average risk score is 5.67, 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. Downer's median patient age at 74, with 46% women.
Medicare patients, 2024379
Average age70
Average risk score5.67
Also on Medicaid33%
Dr. Downer's Medicare patients by age, 2024
Dr. Downer's Medicare patients by sex, 2024
- Women18248%
- Men19752%
Chronic conditions among Dr. Downer's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Heart failure63%
- Diabetes62%
- Arthritis49%
- Ischemic heart disease43%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Downer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women46%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory H. Downer wrote 1,332 Medicare Part D claims in 2024
In 2024, Dr. Downer wrote 1,332 Medicare Part D claims for 398 patients. 78% of them were for generic drugs. CMS names the drug for 1,061 of them, across 28 drugs with 11 or more claims each, at $198,156 in total drug cost. In 2023, CMS named 1,313 claims across 36 drugs.
Part D claims, 20241,332
Drugs named by CMS28
Total drug cost$198,156
Part D patients398
Dr. Downer's Part D claims by kind of drug, 2024
- Generic1,041 claims78%
- Brand-name291 claims22%
Dr. Downer'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. Downer's Part D claims, 2024
- Antibiotics2%29 of 1,332 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: 1,3132024: 1,06119%
Drugs named by CMS: 28 in 2024, 36 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. Gregory H. Downer takes part in Medicare
Dr. Downer 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. Gregory H. Downer has 1 publication on record
Dmand AI links 1 paper to Dr. Downer in 2011. Dr. Downer's most frequent co-authors are Laurence H. Beck, MD and Fernando C. Fervenza, MD.
Papers1
Dr. Downer's most frequent co-authors
Recent publications by Dr. Downer
See who Dr. Downer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Downer works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory H. Downer received $409 in industry payments from 2016 to 2025
CMS Open Payments shows 18 general payments to Dr. Downer from 9 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. Travere Therapeutics, Inc. paid the most, $81.
General payments to Dr. Downer by program year, 2016 to 2025
General payments to Dr. Downer by kind, 2016 to 2025
$409in total
- Food and beverage$30976%
- Education$10024%
Companies that paid Dr. Downer 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. Gregory H. Downer graduated from Indiana University School of Medicine
Dr. Downer graduated from Indiana University School of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory H. Downer'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) |
| 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) |
| 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. Gregory H. Downer
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. Gregory H. Downer's NPI number?
Dr. Gregory H. Downer's NPI number is 1285635367. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory H. Downer?
Dr. Gregory H. Downer is a nephrologist in Pompano Beach, Florida. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Gregory H. Downer practice?
Dr. Downer practices at 3890 Park Central N Blvd, Pompano Beach, FL 33064. Dr. Downer's primary practice is Muskegon Dialysis in Pompano Beach, Florida. Dmand AI also links Dr. Downer to 4 hospitals, 5 dialysis centers and 1 group practice or clinic.
What is Dr. Gregory H. Downer's office phone number?
The practice phone on file for Dr. Downer is (231) 737-0075.
What is Dr. Gregory H. Downer's medical license number?
Dr. Downer holds Michigan license 4301048039.
Which hospitals is Dr. Gregory H. Downer affiliated with?
Dr. Downer is affiliated with Corewell Health Grand Rapids Hospitals - Butterworth. Dmand AI links Dr. Downer to 4 more hospitals.
What medical group is Dr. Gregory H. Downer part of?
Dr. Downer is linked to West Michigan Nephrology.
Does Dr. Gregory H. Downer accept Medicare?
Yes. CMS data shows Dr. Downer billed Medicare for 824 services in 2024, and Dr. Downer accepts Medicare assignment.
How many Medicare patients does Dr. Gregory H. Downer see?
CMS counts 379 Medicare patients who saw Dr. Downer in 2024, with an average age of 70.
What services does Dr. Gregory H. Downer bill to Medicare?
In 2024, Dr. Downer's most billed Medicare services were hospital inpatient care (99232), dialysis (90960) and office visit, established patient (99214).
Show 6 more questionsShow fewer questions
Where did Dr. Gregory H. Downer go to medical school?
Dr. Downer graduated from Indiana University School of Medicine in 1981.
What drugs does Dr. Gregory H. Downer prescribe most?
In 2024 Medicare Part D data, Dr. Downer's most prescribed drugs by claims were Farxiga, Amlodipine Besylate and Torsemide.
Has Dr. Gregory H. Downer received payments from drug or device companies?
CMS Open Payments shows $409 in general payments to Dr. Downer from 9 companies from 2016 to 2025. The largest total came from Travere Therapeutics, Inc.
How long has Dr. Gregory H. Downer been practicing?
Dr. Downer graduated from medical school in 1981, 45 years ago.
Does Dr. Gregory H. Downer do research?
Dmand AI links 1 publication to Dr. Downer.
Who does Dr. Gregory H. Downer publish with?
Dr. Downer's most frequent co-authors are Laurence H. Beck, MD (1 shared paper) and Fernando C. Fervenza, MD (1 shared paper).
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