Quick answers
- Does Madhavi Siddhanthi accept Medicare assignment?
- Yes. Medicare's clinician data says Madhavi Siddhanthi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Madhavi Siddhanthi see?
- In 2024, CMS data shows 314 Original Medicare patients and 3,725 services for Madhavi Siddhanthi. This counts Original Medicare only and measures volume, not quality.
- What is Madhavi Siddhanthi's NPI number?
- 1659543130. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Madhavi Siddhanthi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 314 |
|---|---|
| Services billed to Medicare | 3,725 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Injection, denosumab, 1 mg (J0897)2,160 services
- Injection, methylprednisolone acetate, 1 mg (J1010)750 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)349 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)198 services
- Injection of drug or substance under skin or into muscle (96372)65 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- Arthritis75%
- High blood pressure74%
- Ischemic heart disease32%
- Osteoporosis28%
- Anxiety25%
Hospitals where Madhavi Siddhanthi works
Medicare's Facility Affiliation Data lists Madhavi Siddhanthi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Wellstar Cobb Medical CenterAustell, GA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 110143
- Wellstar Kennestone Regional Medical CenterMarietta, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 110035
- Wellstar North Fulton Medical CenterRoswell, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 110198
- Wellstar Paulding Medical CenterHiram, GA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 110042
Practice locations
Addresses where Madhavi Siddhanthi is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.
- 120 Stonebridge PkwyWoodstock, GA 30189
- 1360 Upper Hembree RdRoswell, GA 30076
- 2450 Old Milton PkwyAlpharetta, GA 30009
- 400 Tower Rd NE, Suite 160Marietta, GA 30060 (770) 420‑1690
- 5150 Stilesboro N W Rd, Suite 220Kennesaw, GA 30152 (770) 424‑8222
Group practices
Medicare enrollment lists Madhavi Siddhanthi as a member of this group (CMS data updated October 2, 2026).
- Wellstar Medical Group LLC3,093 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in Woodstock
Clinicians with the same Medicare primary specialty in Woodstock, GA — not a recommendation.
Other clinicians in Wellstar Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659543130 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians