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Dr. Daniel H. Gruenstein, MD
NPI1518911288PAC ID1254231947
- Publications
- 19
- Clinical trials
- 1
- MIPS score, 2024
- 84
- Hospital affiliations
- 1
- Industry payments
- $74,723
- Practice address
- 489 State Street, Bangor, ME 04401
- Practice phone
- Call (207) 973-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Gruenstein'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. Daniel H. Gruenstein is a pediatric cardiology physician in Bangor, Maine
Dr. Gruenstein practices at Northern Light Eastern Maine Medical Center in Bangor, Maine, part of Northern Light Health.
Dr. Gruenstein's NPI, 1518911288, was assigned on May 19, 2006. Dr. Gruenstein graduated from University Of Cincinnati College Of Medicine in 1996. Dr. Gruenstein's Minnesota license number on file is 48460.
NPI and contact details
- NPI
- 1518911288NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254231947
- NPI enumeration date
- May 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 973-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel H. Gruenstein practices at Northern Light Eastern Maine Medical Center in Bangor, Maine
Dr. Gruenstein's primary practice is Northern Light Eastern Maine Medical Center, at 489 State Street, Bangor, ME 04401 in Penobscot County. The practice phone is (207) 973-7000.
- Northern Light Eastern Maine Medical Center489 State Street, Bangor, ME 04401 · Penobscot CountyPhone(207) 973-7000
Source: Dmand AI Affiliation Data
Dr. Daniel H. Gruenstein is affiliated with 2 sites of care and 7 medical groups
Dr. Gruenstein's primary practice is Northern Light Eastern Maine Medical Center in Bangor, Maine, part of Northern Light Health. The medical group on file is Northern Light Eastern Maine Medical Center. Dmand AI also links Dr. Gruenstein to 6 more medical groups and 1 breast imaging center, each named with a free account. Dr. Gruenstein's employer is on file too: a hospital.
Northern Light Eastern Maine Medical Center6 medical groupsNames with a free account1 breast imaging centerName with a free accountEmployer: hospitalName with a free account
See all 9 affiliations for Dr. GruensteinSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel H. Gruenstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gruenstein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northern Light Eastern Maine Medical Center | Available with a free account |
| +1 more site and 6 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Daniel H. Gruenstein is one of 12 pediatric cardiology physicians in Maine
Pediatric cardiology is Dr. Gruenstein's primary specialty in the NPI Registry, under taxonomy code 2080P0202X. Dr. Gruenstein is board certified in adult congenital heart disease by the American Board of Internal Medicine. Dmand AI has Dr. Gruenstein's licenses on file in 5 states: Minnesota, Maine, Illinois, Ohio and Rhode Island.
Specialties and state licenses
- Pediatric cardiology, MinnesotaPrimary
- Maine license
- Illinois license
- Ohio license
- Rhode Island license
Pediatric cardiology physicians near Dr. Gruenstein
Counts of pediatric cardiology physicians with a Dmand AI profile, by place and practice. Each opens the list.
12pediatric cardiology physicians in Maine
7pediatric cardiology physicians in Bangor
5pediatric cardiology physicians at Northern Light Eastern Maine Medical CenterSources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Daniel H. Gruenstein's patients have a median age of 14
Across all payers, Dmand AI patient panel data puts Dr. Gruenstein's median patient age at 14, with 52% women.
Dr. Gruenstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 14
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Daniel H. Gruenstein scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Gruenstein for performance year 2024, reported as part of a group. Dr. Gruenstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Gruenstein's MIPS scores, performance year 2024
- 84of 100Final score
- 64.8of 100Quality
- 96of 100Promoting Interoperability
- 40of 100Improvement Activities
- 69of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
Dr. Daniel H. Gruenstein has 19 publications on record
Dmand AI links 19 papers to Dr. Gruenstein, published from 2007 to 2021. 2013 was the busiest year, with 4. The most frequent topics are Stents, Cardiac Catheterization and Heart Defects, Congenital. Dr. Gruenstein has published most often in Pediatr Cardiol. Dr. Gruenstein's most frequent co-authors are Matthew A. Crystal, MD, Saar Danon, MD and Abhay Ashok Divekar, MBBS, MD.
Papers19
Years published2007 to 2021
Dr. Gruenstein's papers by year, 2007 to 2021
Topics Dr. Gruenstein writes about most
- Stents
- Cardiac Catheterization
- Heart Defects, Congenital
- Palliative Care
- Prosthesis Design
- Angioplasty, Balloon
- Dog Diseases
- Dogs
Dr. Gruenstein's most frequent co-authors
- Matthew A. Crystal, MD2 shared papers
- Saar Danon, MD2 shared papers
- Abhay Ashok Divekar, MBBS, MD2 shared papers
Recent publications by Dr. Gruenstein
Arrhythmias, CardiacDepressionElectrocardiography
Healthcare DisparitiesHealth Services AccessibilityHeart Defects, Congenital
Cardiac CatheterizationDilatationHeart Defects, Congenital
Angioplasty, BalloonEquipment Failure AnalysisHeart Defects, Congenital
See who Dr. Gruenstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Gruenstein works with, so you can find a warm path to the right pediatric cardiology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel H. Gruenstein has worked on 1 clinical trial
Dmand AI links Dr. Gruenstein to 1 clinical trial. Conditions studied include Heart Septal Defects, Ventricular and Heart Septal Defects.
Conditions in Dr. Gruenstein's trials
- Heart Septal Defects, Ventricular
- Heart Septal Defects
Investigators on the most trials with Dr. Gruenstein
- Osamah Taha Aldoss, MD1 shared trial
- Zahid Amin, MD1 shared trial
- Charles Michael Baker, MD1 shared trial
Recent clinical trials with Dr. Gruenstein
Heart Septal Defects, VentricularHeart Septal DefectsMuscular VSD Occluder device implantation (AMPLATZER Muscular VSD Occluder)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Daniel H. Gruenstein received $74,723 in industry payments from 2016 to 2024
CMS Open Payments shows 91 general payments to Dr. Gruenstein from 8 drug and device companies from 2016 to 2024. Consulting fees make up the largest share, 71% of the total. Abbott Laboratories paid the most, $41,089.
General payments to Dr. Gruenstein by program year, 2016 to 2024
General payments to Dr. Gruenstein by kind, 2016 to 2024
$74.7Kin total
- Consulting fees$52,80871%
- Speaker and faculty fees$13,20818%
- Travel and lodging$4,8687%
- Food and beverage$3,8395%
Companies that paid Dr. Gruenstein the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel H. Gruenstein graduated from University Of Cincinnati College Of Medicine
Dr. Gruenstein graduated from University Of Cincinnati College Of Medicine in 1996.
- Medical school
- Board certified in adult congenital heart disease
- Board certified in pediatric cardiology
Source: Dmand AI Professional Profile Data
Dr. Daniel H. Gruenstein accepts plans from 12 insurance carriers
Dr. Gruenstein is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Alliant Health Plans
- +4 more carriersWith a free account
Plan types Dr. Gruenstein accepts, by number of carriers
- PPO8
- Medicare7
- HMO6
- POS3
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Daniel H. Gruenstein'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Daniel H. Gruenstein
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. Daniel H. Gruenstein's NPI number?
Dr. Daniel H. Gruenstein's NPI number is 1518911288. It was assigned on May 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel H. Gruenstein?
Dr. Daniel H. Gruenstein is a pediatric cardiology physician in Bangor, Maine. The primary specialty in the NPI Registry is Pediatric Cardiology Physician (taxonomy code 2080P0202X).
Where does Dr. Daniel H. Gruenstein practice?
Dr. Gruenstein practices at 489 State Street, Bangor, ME 04401. Dr. Gruenstein's primary practice is Northern Light Eastern Maine Medical Center in Bangor, Maine, part of Northern Light Health. Dmand AI also links Dr. Gruenstein to 6 medical groups and 1 breast imaging center.
What is Dr. Daniel H. Gruenstein's office phone number?
The practice phone on file for Dr. Gruenstein is (207) 973-7000.
What is Dr. Daniel H. Gruenstein's medical license number?
Dr. Gruenstein's Minnesota license number on file is 48460, one of the licenses on file in 5 states.
Which states has Dr. Daniel H. Gruenstein been licensed in?
Dmand AI has state licenses on file for Dr. Gruenstein in Minnesota (2006 to 2020), Maine (2021 to 2026), Illinois (2015 to 2023), Ohio (1997 to 2007) and Rhode Island (2002 to 2004).
Which hospitals is Dr. Daniel H. Gruenstein affiliated with?
Dr. Gruenstein practices at Northern Light Eastern Maine Medical Center in Bangor, Maine.
What medical group is Dr. Daniel H. Gruenstein part of?
Dr. Gruenstein is linked to Northern Light Eastern Maine Medical Center. Dmand AI links Dr. Gruenstein to 6 more medical groups.
Does Dr. Daniel H. Gruenstein accept Medicare?
Yes. CMS lists Dr. Gruenstein as accepting Medicare assignment.
What is Dr. Daniel H. Gruenstein's MIPS score?
Dr. Gruenstein's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
Show 7 more questionsShow fewer questions
Is Dr. Daniel H. Gruenstein board certified?
Yes. Dr. Gruenstein is board certified in adult congenital heart disease by the American Board of Internal Medicine.
Where did Dr. Daniel H. Gruenstein go to medical school?
Dr. Gruenstein graduated from University Of Cincinnati College Of Medicine in 1996.
Has Dr. Daniel H. Gruenstein received payments from drug or device companies?
CMS Open Payments shows $74,723 in general payments to Dr. Gruenstein from 8 companies from 2016 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Daniel H. Gruenstein been practicing?
Dr. Gruenstein graduated from medical school in 1996, 30 years ago.
Does Dr. Daniel H. Gruenstein do research?
Dmand AI links 19 publications to Dr. Gruenstein, published from 2007 to 2021. Dr. Gruenstein has worked on 1 clinical trial.
Who does Dr. Daniel H. Gruenstein publish with?
Dr. Gruenstein's most frequent co-authors are Matthew A. Crystal, MD (2 shared papers), Saar Danon, MD (2 shared papers) and Abhay Ashok Divekar, MBBS, MD (2 shared papers).
What insurance does Dr. Daniel H. Gruenstein accept?
Dr. Gruenstein is in network with 12 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.
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