Subramanian Krishnan, MD
NPI 1528267358 · Cardiovascular Disease Physician · Middletown, CT
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Subramanian Krishnan, MD is a Cardiovascular Disease Physician provider in Middletown, CT (NPI 1528267358).
Provider details
- NPI number
- 1528267358
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 047551 (CT)
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
18 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
2,257 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 | 555 | $139 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 477 | $16 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 476 | $9 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 151 | $215 |
| Technetium Tc-99m Sestamibi, Diagnostic, Per Study DoseA9500 | 134 | $75 |
| 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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 581 | 165 |
| Metoprolol Succinate | 307 | 156 |
| Furosemide | 187 | 83 |
| Atorvastatin Calcium | 169 | 83 |
| Rosuvastatin Calcium | 157 | 73 |
| Rivaroxabanbrand: Xarelto | 129 | 37 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$27 across 1 record (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
- 2007-07-12
- Last updated
- 2019-11-07
Frequently asked questions
- What is Subramanian Krishnan's NPI number?
- Subramanian Krishnan's National Provider Identifier (NPI) is 1528267358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Subramanian Krishnan's specialty?
- Subramanian Krishnan is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Subramanian Krishnan located?
- Subramanian Krishnan's practice location on file with NPPES is 420 Saybrook Rd, Middletown, CT 06457-4747.
- What is Subramanian Krishnan's phone number?
- The practice phone number listed in the NPPES registry for Subramanian Krishnan is (860) 347-4258.
- Does Subramanian Krishnan accept Medicare?
- Subramanian Krishnan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Subramanian Krishnan's NPI active?
- Yes — Subramanian Krishnan's NPI (1528267358) is active in the NPPES registry as of the last update on 2019-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.