Dr. Robert E. Kossack, MD
- Publications
- 2
- Industry payments
- $34
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 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
Find Dr. Kossack'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. Robert E. Kossack is a pediatrician in Worcester, Massachusetts
Dr. Kossack practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts.
Dr. Kossack's NPI, 1912962051, was assigned on April 20, 2006. Dr. Kossack graduated from University of Virginia School of Medicine in 1980. Dr. Kossack holds Massachusetts license 157064.
- NPI
- 1912962051NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749272029
- NPI enumeration date
- April 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 853-2716
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert E. Kossack practices at Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts
Dr. Kossack'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. Robert E. Kossack is affiliated with 2 sites of care and 1 medical group
Dr. Kossack's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. The medical group on file is Reliant Medical Group. Dmand AI also links Dr. Kossack to 1 more group practice or clinic, named with a free account. Dr. Kossack's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert E. Kossack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kossack 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. Robert E. Kossack is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. Kossack's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Kossack is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. Kossack
Counts of pediatricians 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. Robert E. Kossack's patients have a median age of 12
Across all payers, Dmand AI patient panel data puts Dr. Kossack's median patient age at 12, with 27% women.
Dr. Kossack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 12
Patient panel by sex, all payers
- Women27%
- Men72%
Source: Dmand AI Patient Panel Data
How Dr. Robert E. Kossack takes part in Medicare
Dr. Kossack 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)
Dr. Robert E. Kossack has 2 publications on record
Dmand AI links 2 papers to Dr. Kossack, published from 2012 to 2018. Dr. Kossack's most frequent co-author is John R. Knight, MD.
Dr. Kossack's most frequent co-authors
Recent publications by Dr. Kossack
See who Dr. Kossack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kossack works with, so you can find a warm path to the right pediatricians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Robert E. Kossack received $34 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Kossack from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $34.
Companies that paid Dr. Kossack the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert E. Kossack graduated from University of Virginia School of Medicine
Dr. Kossack graduated from University of Virginia School of Medicine in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert E. Kossack'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Robert E. Kossack
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. Robert E. Kossack's NPI number?
Dr. Robert E. Kossack's NPI number is 1912962051. It was assigned on April 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert E. Kossack?
Dr. Robert E. Kossack is a pediatrician in Worcester, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Robert E. Kossack practice?
Dr. Kossack practices at 5 Neponset Street, Worcester, MA 01606. Dr. Kossack's primary practice is Reliant Medical Group - Worcester - Neponset Street in Worcester, Massachusetts. Dmand AI also links Dr. Kossack to 1 group practice or clinic, and a free account names each one.
What is Dr. Robert E. Kossack's office phone number?
The practice phone on file for Dr. Kossack is (508) 853-2716. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Robert E. Kossack's email address?
Dmand AI checks professional and personal email addresses for Dr. Kossack through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Robert E. Kossack's medical license number?
Dr. Kossack holds Massachusetts license 157064.
What medical group is Dr. Robert E. Kossack part of?
Dr. Kossack is linked to Reliant Medical Group.
Who employs Dr. Robert E. Kossack?
Dmand AI has Dr. Kossack's employer on file: a breast imaging center. The organization's name is available with a free Dmand AI account.
Who does Dr. Robert E. Kossack practice with?
Dmand AI links 625 HCPs to Dr. Kossack's primary medical group, 54 of them pediatricians. A free account lists them, with verified contacts.
Does Dr. Robert E. Kossack accept Medicare?
Yes. CMS lists Dr. Kossack as accepting Medicare assignment.
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Where did Dr. Robert E. Kossack go to medical school?
Dr. Kossack graduated from University of Virginia School of Medicine in 1980.
Has Dr. Robert E. Kossack received payments from drug or device companies?
CMS Open Payments shows $34 in general payments to Dr. Kossack from 1 company from 2024 to 2024. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Robert E. Kossack been practicing?
Dr. Kossack graduated from medical school in 1980, 46 years ago.
Does Dr. Robert E. Kossack do research?
Dmand AI links 2 publications to Dr. Kossack, published from 2012 to 2018.
Who does Dr. Robert E. Kossack publish with?
Dr. Kossack's most frequent co-authors are John R. Knight, MD (2 shared papers).
What EHR does Dr. Robert E. Kossack's practice use?
Dmand AI tracks the EHR system at Reliant Medical Group - Worcester - Neponset Street and at 1 more affiliated site. The vendor and product are available with a free Dmand AI account.
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