Charmian Sittambalam, MD
NPI 1013208461 · Geriatric Medicine (Internal Medicine) Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charmian Sittambalam, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Baltimore, MD (NPI 1013208461).
Provider details
- NPI number
- 1013208461
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- D0079068 (MD)
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
15 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
714 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 | 190 | $133 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 133 | $17 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 113 | $111 |
| Advance Care Planning, First 30 Minutes99497 | 63 | $85 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 40 | $20 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 252 | 135 |
| Amlodipine Besylate | 228 | 110 |
| Metoprolol Succinate | 127 | 48 |
| Losartan Potassium | 122 | 67 |
| Lisinopril | 112 | 53 |
| Pantoprazole Sodium | 104 | 52 |
| Gabapentin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,503 across 50 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
- 2011-04-20
- Last updated
- 2015-09-09
Frequently asked questions
- What is Charmian Sittambalam's NPI number?
- Charmian Sittambalam's National Provider Identifier (NPI) is 1013208461, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charmian Sittambalam's specialty?
- Charmian Sittambalam is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Charmian Sittambalam located?
- Charmian Sittambalam's practice location on file with NPPES is 9000 Franklin Square Dr, Baltimore, MD 21237-3901.
- What is Charmian Sittambalam's phone number?
- The practice phone number listed in the NPPES registry for Charmian Sittambalam is (443) 777-7155.
- Does Charmian Sittambalam accept Medicare?
- Charmian Sittambalam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charmian Sittambalam's NPI active?
- Yes — Charmian Sittambalam's NPI (1013208461) is active in the NPPES registry as of the last update on 2015-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.