Dr. Christian James Gronbeck, MD
- Part D claims, 2024
- 510
- Industry payments
- $125
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 100 Trap Falls Rd Ext, Shelton, CT 06484
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Gronbeck'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. Christian James Gronbeck is a dermatologist in Shelton, Connecticut
Dr. Gronbeck practices with Beth Israel Lahey Health, a medical group.
Dr. Gronbeck's NPI, 1093392797, was assigned on March 27, 2021. Dr. Gronbeck holds Massachusetts license 1026512.
- NPI
- 1093392797NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305240755
- NPI enumeration date
- March 27, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- 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 Doctors and Clinicians National Downloadable File (CMS)
Dr. Christian James Gronbeck's practice address is in Shelton, Connecticut
Dr. Gronbeck's practice address in the NPI Registry is 100 Trap Falls Rd Ext, Shelton, CT 06484, in Greater Bridgeport County.
- NPI Registry address100 Trap Falls Rd Ext, Shelton, CT 06484 · Greater Bridgeport County
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Christian James Gronbeck is affiliated with 1 medical group
Dr. Gronbeck is part of Beth Israel Lahey Health, a medical group in Cambridge, Massachusetts.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Christian James Gronbeck's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gronbeck practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Beth Israel Lahey Health | 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 Beth Israel Lahey Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Christian James Gronbeck is one of 225 dermatologists in Connecticut
Dermatology is Dr. Gronbeck's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Gronbeck is licensed in Massachusetts.
Specialties and state licenses
- Dermatology, MassachusettsPrimary
Dermatologists near Dr. Gronbeck
Counts of dermatologists 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. Christian James Gronbeck's patients have a median age of 81
Across all payers, Dmand AI patient panel data puts Dr. Gronbeck's median patient age at 81, with 33% women.
Dr. Gronbeck's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Christian James Gronbeck wrote 510 Medicare Part D claims in 2024
In 2024, Dr. Gronbeck wrote 510 Medicare Part D claims for 171 patients. 79% of them were for generic drugs.
Dr. Gronbeck's Part D claims by kind of drug, 2024
- Generic401 claims79%
- Brand-name109 claims21%
Drug classes CMS tracks in Dr. Gronbeck's Part D claims, 2024
- Antibiotics4%20 of 510 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Christian James Gronbeck takes part in Medicare
Dr. Gronbeck 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Christian James Gronbeck received $125 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Gronbeck from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $125.
Companies that paid Dr. Gronbeck the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Christian James Gronbeck'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| 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. Christian James Gronbeck
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. Christian James Gronbeck's NPI number?
Dr. Christian James Gronbeck's NPI number is 1093392797. It was assigned on March 27, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Christian James Gronbeck?
Dr. Christian James Gronbeck is a dermatologist in Shelton, Connecticut. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Christian James Gronbeck practice?
Dr. Gronbeck practices at 100 Trap Falls Rd Ext, Shelton, CT 06484. Dr. Gronbeck's primary practice is Beth Israel Lahey Health, a medical group.
What is Dr. Christian James Gronbeck's medical license number?
Dr. Gronbeck holds Massachusetts license 1026512.
What medical group is Dr. Christian James Gronbeck part of?
Dr. Gronbeck is part of Beth Israel Lahey Health in Cambridge, Massachusetts.
Does Dr. Christian James Gronbeck accept Medicare?
Yes. CMS lists Dr. Gronbeck as accepting Medicare assignment.
Has Dr. Christian James Gronbeck received payments from drug or device companies?
CMS Open Payments shows $125 in general payments to Dr. Gronbeck from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Christian James Gronbeck been practicing?
Dr. Gronbeck's NPI was assigned in 2021.
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