Sidney Chastang, MD
NPI 1720077225 · Internal Medicine Physician · Marietta, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sidney Chastang, MD is a Internal Medicine Physician provider in Marietta, GA (NPI 1720077225).
Provider details
- NPI number
- 1720077225
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 041094 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
301 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 86 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $80 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 61 | $115 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 31 | $122 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 26 | $18 |
| Urinalysis, Manual Test81002 | 25 | $3 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 122 | 34 |
| Losartan Potassium | 101 | 28 |
| Levothyroxine Sodium | 100 | 30 |
| Rosuvastatin Calcium | 70 | 23 |
| Atorvastatin Calcium | 57 | 20 |
| Lisinopril | 56 | 15 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 across 6 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
Registry dates
- Enumerated
- 2005-10-18
- Last updated
- 2025-04-16
- Certified
- 2025-04-16
Frequently asked questions
- What is Sidney Chastang's NPI number?
- Sidney Chastang's National Provider Identifier (NPI) is 1720077225, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sidney Chastang's specialty?
- Sidney Chastang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sidney Chastang located?
- Sidney Chastang's practice location on file with NPPES is 1121 Johnson Ferry Rd Ste 205, Marietta, GA 30068-5425.
- What is Sidney Chastang's phone number?
- The practice phone number listed in the NPPES registry for Sidney Chastang is (770) 485-3837.
- Does Sidney Chastang accept Medicare?
- Sidney Chastang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sidney Chastang's NPI active?
- Yes — Sidney Chastang's NPI (1720077225) is active in the NPPES registry as of the last update on 2025-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.