DR. MICHAEL G. HARTMAN (M.D.) – Neurological Surgery Physician, NPI 1659377620
Neurological Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
187 NEUROSURGERY in GA
Provider Addresses for DR. MICHAEL G. HARTMAN (M.D.)
203 Oakside Ln Ste A
Canton, GA 301146407
Phone: (404) 446-4424
Fax: (404) 446-4420
Type: Location
9635 VENTANA WAY STE 201
JOHNS CREEK, GA 300228622
Phone: (404) 446-4424
Fax: (404) 446-4420
Type: Location
11877 DOUGLAS RD STE 102-272
ALPHARETTA, GA 300054325
Phone: (404) 446-4424
Fax: (404) 446-4420
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2010-08-16
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 |
|---|---|---|---|---|
| I20100816000654 | I | Neurosurgery | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 35 | 27 | $0 |
| 99422 | Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes | 24 | 20 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 23 | 20 | $0 |
| 62323 | Injection of substance into lower spine canal using imaging guidance | 20 | 12 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $0 |
Insurance plans in this area (ZIP 30114)
Loading plans...
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.