1. Home
  2. Directory
  3. Ohio
  4. South Euclid
  5. Internal Medicine
  6. NPI Profile

DOUGLAS FLAGG MD
NPI 1821178013
Internal Medicine - Rheumatology in South Euclid, OH

Active since October 16, 2006PECOS Enrolled
1611 S GREEN RD # 65, SOUTH EUCLID, OH 44121(216) 291-4050(216) 691-3524 Get Directions Write a Review

NPPES record last updated: November 16, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Douglas Flagg Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DOUGLAS FLAGG MD (NPI 1821178013) is an individual rheumatology provider in South Euclid, Ohio, licensed in Ohio (35-056239) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821178013
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameDOUGLAS FLAGGCredential: MD
Location Address1611 S GREEN RD # 65South Euclid, OH 44121-4129
Mailing AddressPo Box 8792Belfast, ME 04915-8792 · (216) 291-4050 · Fax (216) 691-3524
Phone(216) 291-4050
Fax(216) 691-3524
Sole ProprietorNo
Enumeration DateOctober 16, 2006
Last NPPES UpdateNovember 16, 2010
✔ NPI 1821178013 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in OH · 35-056239
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
1611 S GREEN RD # 65, South Euclid, OH 44121
Open in Google Maps ↗

Other Identifiers 2

Medicaid0818075OH
Medicare PIN0689618OH

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Douglas Flagg Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 44121 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.12 typical visit price
range $54.34 – $166.65
Typical copayment $31.53 (range $13.58 – $41.66)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Douglas Flagg's NPI number?

The NPI number for Douglas Flagg is 1821178013. It was assigned to this individual provider in the NPPES registry on October 16, 2006.

Where is Douglas Flagg located?

Douglas Flagg practices at 1611 S Green Rd # 65, South Euclid, OH 44121. The listed phone number is (216) 291-4050.

What is Douglas Flagg's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Douglas Flagg enrolled in Medicare?

Yes. Douglas Flagg is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Douglas Flagg was last updated on November 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.