Madhavi Siddhanthi, M.D
NPI 1659543130 · Rheumatology Physician · Marietta, GA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madhavi Siddhanthi, M.D is a Rheumatology Physician provider in Marietta, GA (NPI 1659543130).
Provider details
- NPI number
- 1659543130
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Female
- Sole proprietor
- No
- License
- A101944 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
680 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 349 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 198 | $91 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 65 | $14 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 41 | $163 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 16 | $113 |
| Administration of Influenza Virus VaccineG0008 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 226 | 92 |
| Prednisone | 189 | 81 |
| Methotrexate Sodiumbrand: Methotrexate | 179 | 77 |
| Gabapentin | 143 | 56 |
| Methylprednisolone | 98 | 41 |
| Allopurinol | 86 | 34 |
| Leflunomide | 58 | 29 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,477 across 74 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 700 Church St NeMarietta, GA 30060-7220Phone: (770) 420-1690
Registry dates
- Enumerated
- 2008-03-25
- Last updated
- 2019-10-10
Frequently asked questions
- What is Madhavi Siddhanthi's NPI number?
- Madhavi Siddhanthi's National Provider Identifier (NPI) is 1659543130, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madhavi Siddhanthi's specialty?
- Madhavi Siddhanthi is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Madhavi Siddhanthi located?
- Madhavi Siddhanthi's practice location on file with NPPES is 355 Tower Rd Ne Ste 103, Marietta, GA 30060-9410.
- What is Madhavi Siddhanthi's phone number?
- The practice phone number listed in the NPPES registry for Madhavi Siddhanthi is (770) 420-1690.
- Does Madhavi Siddhanthi accept Medicare?
- Madhavi Siddhanthi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madhavi Siddhanthi's NPI active?
- Yes — Madhavi Siddhanthi's NPI (1659543130) is active in the NPPES registry as of the last update on 2019-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.