Dr. Douglas Flagg, MD
- Part D claims, 2024
- 14
- Hospital affiliations
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 10701 East Blvd, Cleveland, OH 44106
- Practice phone
- Call (216) 791-3800
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Flagg'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. Douglas Flagg is a rheumatologist in Cleveland, Ohio
Dr. Flagg practices at Louis Stokes Cleveland Department of Veterans Affairs Medical Center in Cleveland, Ohio, part of Veterans Health Administration.
Dr. Flagg's NPI, 1821178013, was assigned on October 16, 2006. Dr. Flagg holds Ohio license 35-056239.
- NPI
- 1821178013NPI Registry (opens in a new tab)
- NPI enumeration date
- October 16, 2006
- NPI status
- Active
- Practice phone
- (216) 791-3800
- 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. Douglas Flagg practices at Louis Stokes Cleveland Department of Veterans Affairs Medical Center in Cleveland, Ohio
Dr. Flagg's primary practice is Louis Stokes Cleveland Department of Veterans Affairs Medical Center, at 10701 East Blvd, Cleveland, OH 44106 in Cuyahoga County. The practice phone is (216) 791-3800.
- Louis Stokes Cleveland Department of Veterans Affairs Medical Center10701 East Blvd, Cleveland, OH 44106 · Cuyahoga CountyPhone(216) 791-3800
Source: Dmand AI Affiliation Data
Dr. Douglas Flagg is affiliated with 1 site of care
Dr. Flagg's primary practice is Louis Stokes Cleveland Department of Veterans Affairs Medical Center in Cleveland, Ohio, part of Veterans Health Administration. Dr. Flagg's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas Flagg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Flagg practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Louis Stokes Cleveland Department of Veterans Affairs Medical Center | 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 Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Douglas Flagg is one of 258 rheumatologists in Ohio
Rheumatology is Dr. Flagg's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Flagg is licensed in Ohio.
Specialties and state licenses
- Rheumatology, OhioPrimary
Rheumatologists near Dr. Flagg
Counts of rheumatologists 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. Douglas Flagg's patients have a median age of 71
Across all payers, Dmand AI patient panel data puts Dr. Flagg's median patient age at 71, with 21% women.
Dr. Flagg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women21%
- Men74%
Source: Dmand AI Patient Panel Data
Dr. Douglas Flagg wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Flagg wrote 14 Medicare Part D claims. 100% of them were for generic drugs. They cover 3 drugs, with $1,919 in total drug cost. In 2016, CMS named 567 claims across 18 drugs.
Dr. Flagg's most prescribed drugs by claims, 2022
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, 2016 to 2022
- 2016
- 2022
- Claims for drugs CMS names
- 2016: 5672022: 3494%
Drugs named by CMS: 3 in 2022, 18 in 2016.
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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Sources for Dr. Douglas Flagg'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 |
| 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) |
| 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. Douglas Flagg
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. Douglas Flagg's NPI number?
Dr. Douglas Flagg's NPI number is 1821178013. It was assigned on October 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Flagg?
Dr. Douglas Flagg is a rheumatologist in Cleveland, Ohio. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Douglas Flagg practice?
Dr. Flagg practices at 10701 East Blvd, Cleveland, OH 44106. Dr. Flagg's primary practice is Louis Stokes Cleveland Department of Veterans Affairs Medical Center in Cleveland, Ohio, part of Veterans Health Administration.
What is Dr. Douglas Flagg's office phone number?
The practice phone on file for Dr. Flagg is (216) 791-3800.
What is Dr. Douglas Flagg's medical license number?
Dr. Flagg holds Ohio license 35-056239.
Which hospitals is Dr. Douglas Flagg affiliated with?
Dr. Flagg practices at Louis Stokes Cleveland Department of Veterans Affairs Medical Center in Cleveland, Ohio.
What drugs does Dr. Douglas Flagg prescribe most?
In 2022 Medicare Part D data, Dr. Flagg's most prescribed drugs by claims were Amlodipine Besylate, Hydrochlorothiazide and Insulin Lispro Kwikpen U-100.
How long has Dr. Douglas Flagg been practicing?
Dr. Flagg's NPI was assigned in 2006.
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