HARIHARAN SUBRAMANIAN (M.D.) – Cardiovascular Disease Physician, NPI 1801080080
Cardiovascular Disease Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,398 CARDIOVASCULAR DISEASE (CARDIOLOGY) in MA
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Provider Addresses for HARIHARAN SUBRAMANIAN (M.D.)
Holyoke Medical Center, 575, Beech Street, Elmwood, Holyoke, Hampden County, Massachusetts, 01040, United States
1ST FLOOR
HOLYOKE, MA 010402223
Phone: (413) 534-2870
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $268.
Total Amount is formed as General ($268) + Research ($0) + Ownership ($0) = $268.
Last reported payment date: 2024-11-06 • Largest payer in this snapshot: PFIZER INC. ($133).
Total Amount
$268
General + Research + Ownership
Payments
8
Total payment records
General Amount
$268
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| PFIZER INC. | $133 |
| E.R. Squibb & Sons, L.L.C. | $46 |
| Impulse Dynamics (USA) Inc. | $31 |
| Lexicon Pharmaceuticals, Inc. | $31 |
| Abbott Laboratories | $28 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2014-10-20
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20141020002249 | I | Cardiovascular Disease (Cardiology) | MA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 93010 | Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 1,358 | 1,087 | $0 |
| 93306 | Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 580 | 568 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 534 | 377 | $0 |
| 93294 | Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | 148 | 48 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 134 | 126 | $0 |
Insurance plans in this area (ZIP 01040)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| CARDIOVASCULAR DISEASE (CARDIOLOGY) | MA | 93010 | Routine electrocardiogram (EKG) using at least 12 leads with interpretation and report | 719 | 531 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | MA | |
| Diagnostic Radiology | MA | |
| N E U R O L O G Y | MA | |
| A N E S T H E S I O L O G Y | MA | |
| General Surgery | MA | |
| Diagnostic Radiology | OR | |
| Hospitalist, Internal Medicine | NY | |
| Physician Assistant | MA | |
| Hospitalist, Family Practice | IL | |
| A N E S T H E S I O L O G Y | MA |
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