Dr. Ronald P. Winfield, MD
- Medicare services, 2024
- 1,058
- Medicare patients, 2024
- 92
- Part D claims, 2024
- 530
- Industry payments
- $946
- Affiliated sites
- 1
- Practice address
- 73 Princeton St Suite 203 Suite 203, North Chelmsford, MA 01863-1559
- Practice phone
- Call (978) 256-6579
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greater Lowell Psychiatric Associates
Behavioral health practice · North Chelmsford, Massachusetts
Find Dr. Winfield'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. Ronald P. Winfield is a psychiatrist in North Chelmsford, Massachusetts
Dr. Winfield practices at Greater Lowell Psychiatric Associates in North Chelmsford, Massachusetts.
Dr. Winfield's NPI, 1679554927, was assigned on November 11, 2005. Dr. Winfield graduated from Harvard Medical School in 1973. Dr. Winfield holds Massachusetts license 36859.
- NPI
- 1679554927NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193620953
- NPI enumeration date
- November 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 256-6579
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ronald P. Winfield practices at Greater Lowell Psychiatric Associates in North Chelmsford, Massachusetts
Dr. Winfield's primary practice is Greater Lowell Psychiatric Associates, at 73 Princeton St Suite 203 Suite 203, North Chelmsford, MA 01863-1559. The practice phone is (978) 256-6579.
- Greater Lowell Psychiatric Associates73 Princeton St Suite 203 Suite 203, North Chelmsford, MA 01863-1559Phone(978) 256-6579
Source: Dmand AI Affiliation Data
Dr. Ronald P. Winfield is affiliated with 1 site of care and 1 medical group
Dr. Winfield's primary practice is Greater Lowell Psychiatric Associates in North Chelmsford, Massachusetts. The medical group on file is Greater Lowell Psychiatric Associates.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ronald P. Winfield's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Winfield practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater Lowell Psychiatric Associates | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ronald P. Winfield is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. Winfield's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Winfield is licensed in Massachusetts.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
Psychiatrists near Dr. Winfield
Counts of psychiatrists 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. Ronald P. Winfield billed Medicare for 1,058 services in 2024
CMS data shows 1,058 Medicare services from Dr. Winfield across 5 procedure codes in 2024, for 92 Medicare patients. Medicare paid $163,028 for them. Every service was in an office.
Dr. Winfield's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 8002024: 8061%
- Office and hospital visits
- 2023: 1882024: 25234%
Dr. Winfield compared with the Massachusetts median for psychiatrists, 2024
- Dr. Winfield
- Massachusetts median
- Medicare services
- 1,058vs 1726.2 times
- Medicare patients
- 92vs 422.2 times
- Part D claims
- 450vs 924.9 times
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Winfield'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald P. Winfield treated 92 Medicare patients in 2024, average age 67
CMS counts 92 Medicare patients who saw Dr. Winfield in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have anxiety, and 75% have depression. 40% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Winfield's median patient age at 57, with 57% women.
Dr. Winfield's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Winfield's Medicare patients by sex, 2024
- Women5560%
- Men3740%
Chronic conditions among Dr. Winfield's Medicare patients, 2024
- Anxiety75%
- Depression75%
- Mood disorders75%
- High cholesterol74%
- High blood pressure65%
- Arthritis40%
- Chronic kidney disease28%
- Diabetes28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Winfield's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald P. Winfield wrote 530 Medicare Part D claims in 2024
In 2024, Dr. Winfield wrote 530 Medicare Part D claims for 61 patients. 98% of them were for generic drugs. CMS names the drug for 450 of them, across 19 drugs with 11 or more claims each, at $6,206 in total drug cost. In 2023, CMS named 845 claims across 28 drugs.
Dr. Winfield's Part D claims by kind of drug, 2024
- Generic520 claims98%
- Brand-name and other10 claims2%
Dr. Winfield'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. Winfield's Part D claims, 2024
- Antipsychotics, patients 65 and over14%75 of 530 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: 8452024: 45047%
Drugs named by CMS: 19 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. Ronald P. Winfield takes part in Medicare
Dr. Winfield 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. Ronald P. Winfield received $946 in industry payments from 2016 to 2025
CMS Open Payments shows 44 general payments to Dr. Winfield from 16 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Axsome Therapeutics, Inc. paid the most, $139.
General payments to Dr. Winfield by program year, 2016 to 2025
Companies that paid Dr. Winfield 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. Ronald P. Winfield graduated from Harvard Medical School
Dr. Winfield graduated from Harvard Medical School in 1973.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald P. Winfield'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 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. Ronald P. Winfield
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. Ronald P. Winfield's NPI number?
Dr. Ronald P. Winfield's NPI number is 1679554927. It was assigned on November 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald P. Winfield?
Dr. Ronald P. Winfield is a psychiatrist in North Chelmsford, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Ronald P. Winfield practice?
Dr. Winfield practices at 73 Princeton St Suite 203 Suite 203, North Chelmsford, MA 01863-1559. Dr. Winfield's primary practice is Greater Lowell Psychiatric Associates in North Chelmsford, Massachusetts.
What is Dr. Ronald P. Winfield's office phone number?
The practice phone on file for Dr. Winfield is (978) 256-6579.
What is Dr. Ronald P. Winfield's medical license number?
Dr. Winfield holds Massachusetts license 36859.
What medical group is Dr. Ronald P. Winfield part of?
Dr. Winfield is linked to Greater Lowell Psychiatric Associates.
Does Dr. Ronald P. Winfield accept Medicare?
Yes. CMS data shows Dr. Winfield billed Medicare for 1,058 services in 2024, and Dr. Winfield accepts Medicare assignment.
How many Medicare patients does Dr. Ronald P. Winfield see?
CMS counts 92 Medicare patients who saw Dr. Winfield in 2024, with an average age of 67.
What services does Dr. Ronald P. Winfield bill to Medicare?
In 2024, Dr. Winfield's most billed Medicare services were psychiatric service (90868), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Ronald P. Winfield go to medical school?
Dr. Winfield graduated from Harvard Medical School in 1973.
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What drugs does Dr. Ronald P. Winfield prescribe most?
In 2024 Medicare Part D data, Dr. Winfield's most prescribed drugs by claims were Lorazepam, Quetiapine Fumarate and Fluoxetine HCl.
Has Dr. Ronald P. Winfield received payments from drug or device companies?
CMS Open Payments shows $946 in general payments to Dr. Winfield from 16 companies from 2016 to 2025. The largest total came from Axsome Therapeutics, Inc.
How long has Dr. Ronald P. Winfield been practicing?
Dr. Winfield graduated from medical school in 1973, 53 years ago.
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