Ram Subramanian, M.D.
NPI 1538380464 · Hepatology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ram Subramanian, M.D. is a Hepatology Physician provider in Atlanta, GA (NPI 1538380464).
Provider details
- NPI number
- 1538380464
- Entity type
- Individual
- Primary specialty
- Hepatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 059210 (GA)
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
19 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
217 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 103 | $213 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 94 | $115 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $65 |
Typical Medicare-allowed amounts for these services range $65–$213 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tacrolimus | 165 | 47 |
| Pantoprazole Sodium | 105 | 23 |
| Prednisone | 70 | 23 |
| Ursodiol | 62 | 14 |
| Mycophenolate Mofetil | 61 | 17 |
| Cyclosporine, Modifiedbrand: Cyclosporine Modified | 49 | — |
| Nifedipinebrand: Nifedipine Er | 47 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$55,345 across 18 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
- 2007-05-01
- Last updated
- 2018-02-06
Frequently asked questions
- What is Ram Subramanian's NPI number?
- Ram Subramanian's National Provider Identifier (NPI) is 1538380464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ram Subramanian's specialty?
- Ram Subramanian is listed in the NPPES registry with a primary specialty of Hepatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ram Subramanian located?
- Ram Subramanian's practice location on file with NPPES is 1365 Clifton Rd Ne Bldg B-1, Atlanta, GA 30322-1059.
- What is Ram Subramanian's phone number?
- The practice phone number listed in the NPPES registry for Ram Subramanian is (404) 778-3184.
- Does Ram Subramanian accept Medicare?
- Ram Subramanian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ram Subramanian's NPI active?
- Yes — Ram Subramanian's NPI (1538380464) is active in the NPPES registry as of the last update on 2018-02-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.