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Dr. David A. Chad, MD
NPI1477537520PAC ID7012927544
- Medicare services, 2024
- 281
- Medicare patients, 2024
- 138
- Part D claims, 2024
- 256
- Publications
- 10
- Hospital affiliations
- 1
- Practice address
- 5 Neponset Street, Worcester, MA 01606
- Practice phone
- Call (508) 853-2716
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Reliant Medical Group - Worcester - Neponset Street
Mammography / Breast Imaging Center · Worcester, Massachusetts
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Dr. David A. Chad is a neurologist in Worcester, Massachusetts
Dr. Chad practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
Dr. Chad's NPI, 1477537520, was assigned on December 2, 2005. Dr. Chad holds Massachusetts license 45515.
NPI and contact details
- NPI
- 1477537520NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012927544
- NPI enumeration date
- December 2, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (508) 853-2716
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David A. Chad practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts
Dr. Chad's primary practice is Reliant Medical Group - Worcester - Neponset Street, at 5 Neponset Street, Worcester, MA 01606. The practice phone is (508) 853-2716.
- Reliant Medical Group - Worcester - Neponset Street5 Neponset Street, Worcester, MA 01606Phone(508) 853-2716
Source: Dmand AI Affiliation Data
Dr. David A. Chad is affiliated with 2 sites of care and 1 medical group
Dr. Chad's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. Dr. Chad is also affiliated with UMass Memorial Medical Center - University Campus. The medical group on file is Reliant Medical Group. Dr. Chad's employer is on file too: a breast imaging center.
Reliant Medical Group - Worcester - Neponset StreetPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David A. Chad's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chad practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Reliant Medical Group - Worcester - Neponset Street | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David A. Chad is one of 806 neurologists in Massachusetts
Neurology is Dr. Chad's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Chad is licensed in Massachusetts.
Specialties and state licenses
- Neurology, MassachusettsPrimary
Neurologists near Dr. Chad
Counts of neurologists 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. David A. Chad billed Medicare for 281 services in 2024
CMS data shows 281 Medicare services from Dr. Chad across 8 procedure codes in 2024, for 138 Medicare patients. Medicare paid $25,166 for them. Every service was in an office.
Medicare services, 2024281
Medicare patients138
Paid by Medicare$25,166
Procedure codes8
Dr. Chad's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1582024: 20328%
- Office and hospital visits
- 2023: 652024: 7820%
Dr. Chad compared with the Massachusetts median for neurologists, 2024
- Dr. Chad
- Massachusetts median
- Medicare services
- 281vs 31411% below
- Medicare patients
- 138vs 17822% below
- Part D claims
- 167vs 27038% below
Medians across 741 neurologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Chad'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. David A. Chad treated 138 Medicare patients in 2024, average age 71
CMS counts 138 Medicare patients who saw Dr. Chad in 2024. The largest group is 65 to 74, with 70 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chad's median patient age at 65, with 52% women.
Medicare patients, 2024138
Average age71
Average risk score1.42
Also on Medicaid25%
Dr. Chad's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chad's Medicare patients by sex, 2024
- Women7353%
- Men6547%
Chronic conditions among Dr. Chad's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis62%
- Mood disorders36%
- Depression31%
- Chronic kidney disease29%
- Diabetes29%
- Anxiety25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chad's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David A. Chad wrote 256 Medicare Part D claims in 2024
In 2024, Dr. Chad wrote 256 Medicare Part D claims for 36 patients. 86% of them were for generic drugs. CMS names the drug for 167 of them, across 5 drugs with 11 or more claims each, at $429,132 in total drug cost. In 2023, CMS named 127 claims across 5 drugs.
Part D claims, 2024256
Drugs named by CMS5
Total drug cost$429,132
Part D patients36
Dr. Chad's Part D claims by kind of drug, 2024
- Generic221 claims86%
- Brand-name35 claims14%
Dr. Chad'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1272024: 16731%
Drugs named by CMS: 5 in 2024, 5 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
Dr. David A. Chad offers telehealth to Medicare patients
Dr. Chad accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chad as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David A. Chad has 10 publications on record
Dmand AI links 10 papers to Dr. Chad, published from 2013 to 2017. 2015 was the busiest year, with 2. The most frequent topics are Diagnosis, Differential and Neuromuscular Diseases. Dr. Chad has published most often in N Engl J Med. Dr. Chad's most frequent co-authors are Carmel Armon, MD, Joshua Norbert Baker, MD and Michael P. Bowley, MD, PhD.
Papers10
Years published2013 to 2017
Dr. Chad's papers by year, 2013 to 2017
Topics Dr. Chad writes about most
- Diagnosis, Differential
- Neuromuscular Diseases
Dr. Chad's most frequent co-authors
- Carmel Armon, MD1 shared paper
- Joshua Norbert Baker, MD1 shared paper
- Michael P. Bowley, MD, PhD1 shared paper
Recent publications by Dr. Chad
Semin Neurol
History, 21st CenturyNeuromuscular Diseases
See who Dr. Chad researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chad works with, so you can find a warm path to the right neurologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Sources for Dr. David A. Chad'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 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 |
| 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. David A. Chad
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. David A. Chad's NPI number?
Dr. David A. Chad's NPI number is 1477537520. It was assigned on December 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Chad?
Dr. David A. Chad is a neurologist in Worcester, Massachusetts. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. David A. Chad practice?
Dr. Chad practices at 5 Neponset Street, Worcester, MA 01606. Dr. Chad's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
What is Dr. David A. Chad's office phone number?
The practice phone on file for Dr. Chad is (508) 853-2716.
What is Dr. David A. Chad's medical license number?
Dr. Chad holds Massachusetts license 45515.
Which hospitals is Dr. David A. Chad affiliated with?
Dr. Chad is affiliated with UMass Memorial Medical Center - University Campus.
What medical group is Dr. David A. Chad part of?
Dr. Chad is linked to Reliant Medical Group.
Does Dr. David A. Chad accept Medicare?
Yes. CMS data shows Dr. Chad billed Medicare for 281 services in 2024, and Dr. Chad accepts Medicare assignment.
Does Dr. David A. Chad offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chad as offering telehealth services.
How many Medicare patients does Dr. David A. Chad see?
CMS counts 138 Medicare patients who saw Dr. Chad in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. David A. Chad bill to Medicare?
In 2024, Dr. Chad's most billed Medicare services were nerve and brain test (95885), office visit, established patient (99214) and nerve and brain test (95886).
What drugs does Dr. David A. Chad prescribe most?
In 2024 Medicare Part D data, Dr. Chad's most prescribed drugs by claims were Gabapentin, Prednisone and Mycophenolate Mofetil.
How long has Dr. David A. Chad been practicing?
Dr. Chad graduated from medical school in 1974, 52 years ago.
Does Dr. David A. Chad do research?
Dmand AI links 10 publications to Dr. Chad, published from 2013 to 2017.
Who does Dr. David A. Chad publish with?
Dr. Chad's most frequent co-authors are Carmel Armon, MD (1 shared paper), Joshua Norbert Baker, MD (1 shared paper) and Michael P. Bowley, MD, PhD (1 shared paper).
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