Dr. Gregory S. Emmons, DO
- Medicare services, 2016
- 972
- Part D claims, 2023
- 12
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $176
- Practice address
- 364 Pritham Ave, Greenville, ME 04441
- Practice phone
- Call (207) 695-5209
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Gregory S. Emmons is a hematologist and oncologist in Greenville, Maine
Dr. Emmons practices at Northern Light CA Dean Hospital in Greenville, Maine, part of Northern Light Health.
Dr. Emmons' NPI, 1639256845, was assigned on November 1, 2006. Dr. Emmons holds Maine license 2074.
- NPI
- 1639256845NPI Registry (opens in a new tab)
- NPI enumeration date
- November 1, 2006
- NPI status
- Active
- Practice phone
- (207) 695-5209
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Gregory S. Emmons practices at Northern Light CA Dean Hospital in Greenville, Maine
Dr. Emmons' primary practice is Northern Light CA Dean Hospital, at 364 Pritham Ave, Greenville, ME 04441 in Piscataquis County. The practice phone is (207) 695-5209.
- Northern Light CA Dean Hospital364 Pritham Ave, Greenville, ME 04441 · Piscataquis CountyPhone(207) 695-5209
Source: Dmand AI Affiliation Data
Dr. Gregory S. Emmons is affiliated with 1 site of care
Dr. Emmons' primary practice is Northern Light CA Dean Hospital in Greenville, Maine, part of Northern Light Health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Gregory S. Emmons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Emmons practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Light CA Dean Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Northern Light Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Gregory S. Emmons is one of 70 hematologists and oncologists in Maine
Hematology and oncology is Dr. Emmons' primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Emmons is licensed in Maine.
Specialties and state licenses
- Hematology and oncology, MainePrimary
Hematologists and oncologists near Dr. Emmons
Counts of hematologists and oncologists 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 S. Emmons billed Medicare for 972 services in 2016
CMS data shows 972 Medicare services from Dr. Emmons across 7 procedure codes in 2016. Medicare paid $54,219 for them.
Where Dr. Emmons' Medicare services took place, 2016
- In an office67670%
- In a facility29630%
Dr. Emmons compared with the Maine median for hematologists and oncologists, 2016
- Dr. Emmons
- Maine median
- Medicare services
- 972vs 3842.5 times
- Part D claims
- 12vs 29296% below
Medians across 72 hematologists and oncologists in Maine with Dmand AI profiles that report each measure.
Dr. Emmons' most billed Medicare procedure codes, 2016
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. Emmons?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Emmons and other hematologists and oncologists in Maine.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory S. Emmons' patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Emmons' median patient age at 73, with 9% women.
Dr. Emmons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women9%
- Men91%
Source: Dmand AI Patient Panel Data
Dr. Gregory S. Emmons wrote 12 Medicare Part D claims in 2023
In 2023, Dr. Emmons wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $181 in total drug cost. In 2017, CMS named 25 claims across 1 drug.
Dr. Emmons' most prescribed drugs by claims, 2023
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, 2017 to 2023
- 2017
- 2023
- Claims for drugs CMS names
- 2017: 252023: 1252%
Drugs named by CMS: 1 in 2023, 1 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Gregory S. Emmons has 1 publication on record
Dmand AI links 1 paper to Dr. Emmons in 2012. Dr. Emmons' most frequent co-authors are Wilson C. Mertens, MD and James A. Stewart, MD.
Dr. Emmons' most frequent co-authors
Recent publications by Dr. Emmons
See who Dr. Emmons researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Emmons works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory S. Emmons received $176 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Emmons from 8 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 67% of the total. Celgene Corporation paid the most, $39.
General payments to Dr. Emmons by program year, 2016 to 2025
General payments to Dr. Emmons by kind, 2016 to 2025
- Food and beverage$11767%
- Education$5833%
Companies that paid Dr. Emmons the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Gregory S. Emmons'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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 S. Emmons
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 S. Emmons' NPI number?
Dr. Gregory S. Emmons' NPI number is 1639256845. It was assigned on November 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory S. Emmons?
Dr. Gregory S. Emmons is a hematologist and oncologist in Greenville, Maine. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Gregory S. Emmons practice?
Dr. Emmons practices at 364 Pritham Ave, Greenville, ME 04441. Dr. Emmons' primary practice is Northern Light CA Dean Hospital in Greenville, Maine, part of Northern Light Health.
What is Dr. Gregory S. Emmons' office phone number?
The practice phone on file for Dr. Emmons is (207) 695-5209.
What is Dr. Gregory S. Emmons' medical license number?
Dr. Emmons holds Maine license 2074.
Which hospitals is Dr. Gregory S. Emmons affiliated with?
Dr. Emmons practices at Northern Light CA Dean Hospital in Greenville, Maine.
Does Dr. Gregory S. Emmons accept Medicare?
Yes. CMS data shows Dr. Emmons billed Medicare for 972 services in 2016.
What services does Dr. Gregory S. Emmons bill to Medicare?
In 2016, Dr. Emmons' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
What drugs does Dr. Gregory S. Emmons prescribe most?
In 2023 Medicare Part D data, Dr. Emmons' most prescribed drugs by claims were Potassium Chloride.
Has Dr. Gregory S. Emmons received payments from drug or device companies?
CMS Open Payments shows $176 in general payments to Dr. Emmons from 8 companies from 2016 to 2025. The largest total came from Celgene Corporation.
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How long has Dr. Gregory S. Emmons been practicing?
Dr. Emmons' NPI was assigned in 2006.
Does Dr. Gregory S. Emmons do research?
Dmand AI links 1 publication to Dr. Emmons.
Who does Dr. Gregory S. Emmons publish with?
Dr. Emmons' most frequent co-authors are Wilson C. Mertens, MD (1 shared paper) and James A. Stewart, MD (1 shared paper).
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