Dr. Adam Joseph Gratz, DO
- Part D claims, 2024
- 259
- Industry payments
- $235
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 67 Mamalahoa Hwy, Kamuela, HI 96743
- Practice phone
- Call (808) 960-3311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Medical group
Find Dr. Gratz'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. Adam Joseph Gratz is a general practice physician in Kamuela, Hawaii
Dr. Gratz practices with Mango Medical, a medical group.
Dr. Gratz's NPI, 1598895351, was assigned on March 7, 2007. Dr. Gratz holds Hawaii license DOS-1090.
- NPI
- 1598895351NPI Registry (opens in a new tab)
- NPI enumeration date
- March 7, 2007
- NPI status
- Active
- Practice phone
- (808) 960-3311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Adam Joseph Gratz's practice address is in Kamuela, Hawaii
Dr. Gratz's practice address in the NPI Registry is 67 Mamalahoa Hwy, Kamuela, HI 96743, in Hawaii County. The practice phone is (808) 960-3311.
- NPI Registry address67 Mamalahoa Hwy, Kamuela, HI 96743 · Hawaii CountyPhone(808) 960-3311
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Adam Joseph Gratz is affiliated with 1 medical group
Dr. Gratz is part of Mango Medical, a medical group in Kamuela, Hawaii.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Adam Joseph Gratz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gratz practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mango Medical | 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 Mango Medical and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Adam Joseph Gratz is one of 120 general practice physicians in Hawaii
General practice is Dr. Gratz's primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Gratz is licensed in Hawaii.
Specialties and state licenses
- General practice, HawaiiPrimary
General practice physicians near Dr. Gratz
Counts of general practice physicians 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. Adam Joseph Gratz's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Gratz's median patient age at 78, with 75% women.
Dr. Gratz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Dr. Adam Joseph Gratz wrote 259 Medicare Part D claims in 2024
In 2024, Dr. Gratz wrote 259 Medicare Part D claims for 44 patients. 86% of them were for generic drugs. CMS names the drug for 74 of them, across 5 drugs with 11 or more claims each, at $951 in total drug cost. In 2023, CMS named 23 claims across 2 drugs.
Dr. Gratz's Part D claims by kind of drug, 2024
- Generic223 claims86%
- Brand-name and other36 claims14%
Dr. Gratz'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.
Drug classes CMS tracks in Dr. Gratz's Part D claims, 2024
- Opioids10%26 of 259 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 232024: 74222%
Drugs named by CMS: 5 in 2024, 2 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
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Dr. Adam Joseph Gratz received $235 in industry payments from 2016 to 2021
CMS Open Payments shows 7 general payments to Dr. Gratz from 5 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Indivior Inc. paid the most, $119.
General payments to Dr. Gratz by program year, 2016 to 2021
Companies that paid Dr. Gratz the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Adam Joseph Gratz'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 and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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. Adam Joseph Gratz
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. Adam Joseph Gratz's NPI number?
Dr. Adam Joseph Gratz's NPI number is 1598895351. It was assigned on March 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Adam Joseph Gratz?
Dr. Adam Joseph Gratz is a general practice physician in Kamuela, Hawaii. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Adam Joseph Gratz practice?
Dr. Gratz practices at 67 Mamalahoa Hwy, Kamuela, HI 96743. Dr. Gratz's primary practice is Mango Medical, a medical group.
What is Dr. Adam Joseph Gratz's office phone number?
The practice phone on file for Dr. Gratz is (808) 960-3311.
What is Dr. Adam Joseph Gratz's medical license number?
Dr. Gratz holds Hawaii license DOS-1090.
What medical group is Dr. Adam Joseph Gratz part of?
Dr. Gratz is part of Mango Medical in Kamuela, Hawaii.
What drugs does Dr. Adam Joseph Gratz prescribe most?
In 2024 Medicare Part D data, Dr. Gratz's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Zolpidem Tartrate.
Has Dr. Adam Joseph Gratz received payments from drug or device companies?
CMS Open Payments shows $235 in general payments to Dr. Gratz from 5 companies from 2016 to 2021. The largest total came from Indivior Inc.
How long has Dr. Adam Joseph Gratz been practicing?
Dr. Gratz's NPI was assigned in 2007.
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