DOUGLAS ANDREW ISENSTEIN (MD) – Pulmonary Disease Physician, NPI 1528148400
Pulmonary Disease Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
503 PULMONARY DISEASE in GA
Provider Addresses for DOUGLAS ANDREW ISENSTEIN (MD)
1800 TREE LANE ROAD
SUITE 200
SNELLVILLE, GA 30078
Phone: (770) 979-0367
Fax: (770) 979-1830
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 54 Open Payments records for all available years, with a total value of $1,078.
Total Amount is formed as General ($1,078) + Research ($0) + Ownership ($0) = $1,078.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($266).
Total Amount
$1,078
General + Research + Ownership
Payments
54
Total payment records
General Amount
$1,078
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $266 |
| GlaxoSmithKline, LLC. | $215 |
| Inspire Medical Systems, Inc. | $103 |
| Actelion Pharmaceuticals US, Inc. | $53 |
| CSL Behring | $46 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-02-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050209000654 | I | Pulmonary Disease | GA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 300 | 93 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 269 | 173 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 75 | 73 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 71 | 71 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 41 | 26 | $0 |
Insurance plans in this area (ZIP 30078)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| R H E U M A T O L O G Y | GA | |
| Pulmonary Disease, Critical Care (Intensivists) | GA | |
| Pulmonary Disease | GA | |
| Nurse Practitioner | GA | |
| Pulmonary Disease | GA | |
| Internal Medicine | GA | |
| Internal Medicine | GA | |
| Internal Medicine | GA | |
| - | GA | |
| Nephrology, Internal Medicine | GA |
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