Douglas Andrew Isenstein, MD
Pulmonary Disease Physician · Snellville, GA
Douglas Andrew Isenstein, MD is a pulmonary disease physician with a practice address in Snellville, Georgia, and NPI 1528148400, issued on Oct 16, 2006. Check the license (Georgia 025770, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Douglas Andrew Isenstein
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- 025770 GA
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Tree Lane Road, Snellville, GA 30078
- Phone
- (770) 979-0367
- Enumerated
- Oct 16, 2006
- Record last updated
- Oct 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (770) 979-1830
- Medicaid ID
- 0032622 GA
- Medicare enrollment
- Enrolled (PECOS I20050209000654); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 1982
- Entity
- Type 1 · individual
Also registered at 1800 Tree Lane Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Grey, MDPulmonary Disease Physician1467532325
- Gregory Mauldin, MDCritical Care Medicine (Internal Medicine) Physician1871673749
- Amsel Siore, MDPulmonary Disease Physician1013097971
Verify Douglas Andrew Isenstein in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 025770Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average pulmonary disease physician in 2024
1,798 Medicare Part D claims for 306 beneficiaries, against an average of 1,425 among the 11,596 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Trelegy Ellipta386 claims
- Albuterol Sulfate Hfa236 claims
- Montelukast Sodium87 claims
- Prednisone84 claims
- Breztri Aerosphere69 claims
- Azithromycin68 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 16.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $434.96
20 payments; by number, the most common kind was food and beverage; the largest payer was Inspire Medical Systems, Inc. The 8,806 providers of this specialty with any payment received $5,159.88 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Northeast Georgia Diagnostic Associates And Clinic, LLCLawrenceville, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Pulmonary Disease Physician providers in Georgia
There are 399 pulmonary disease physician records in Georgia.
Other pulmonary disease physician records in Georgia
- Israel Acosta Sanchez, M.D.Augusta, GA1831540426
- Umama Adil, MDDalton, GA1033524368
- Vishal Agrawal, M.D.Dublin, GA1902995178
- Samuel Aguayo, M.D.Decatur, GA1841219490
- Masood Ahmed, M. D.Savannah, GA1255489019
- Fawaz Akbik, M.D.East Point, GA1194784181
- Sisir Akkineni, M.D.Atlanta, GA1487033486
- Igor Aksenov, M.D.Savannah, GA1699854224
- Sami Al Ampnti, MDGrovetown, GA1659990786
- Mohammad Al Azem, M.D.Marietta, GA1174612477
Common questions
What is Douglas Andrew Isenstein, MD's NPI number?
Douglas Andrew Isenstein, MD's National Provider Identifier (NPI) is 1528148400, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Andrew Isenstein, MD located?
The NPPES record lists a practice address at 1800 Tree Lane Road, Snellville, GA, 30078. Phone: (770) 979-0367. Providers update this record themselves, so call before visiting.
How can I verify Douglas Andrew Isenstein, MD's license?
NPPES lists Georgia license number 025770, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas Andrew Isenstein, MD prescribe under Medicare Part D?
In 2024, Douglas Andrew Isenstein, MD had 1,798 Medicare Part D claims for 306 beneficiaries; the average among pulmonary disease physician prescribers was 1,425. Part D covers Medicare prescriptions only.
What is Douglas Andrew Isenstein, MD's MIPS final score?
The 2023 MIPS final score is 16.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.