Quick answers
- Does Siddhartha Rangineni accept Medicare assignment?
- Yes. Medicare's clinician data says Siddhartha Rangineni accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Siddhartha Rangineni see?
- In 2024, CMS data shows 607 Original Medicare patients and 2,264 services for Siddhartha Rangineni. This counts Original Medicare only and measures volume, not quality.
- What is Siddhartha Rangineni's NPI number?
- 1780817700. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Siddhartha Rangineni, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 607 |
|---|---|
| Services billed to Medicare | 2,264 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,180 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)614 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)333 services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)61 services
- Hospital discharge day management, more than 30 minutes (99239)55 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis62%
- Diabetes57%
- Ischemic heart disease56%
- Heart failure54%
Hospitals where Siddhartha Rangineni works
Medicare's Facility Affiliation Data lists Siddhartha Rangineni at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- INTEGRIS Baptist Medical Center, IncOklahoma City, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370028
- INTEGRIS Health Enid HospitalEnid, OK · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 370016
- INTEGRIS Miami HospitalMiami, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370004
- INTEGRIS Southwest Medical CenterOklahoma City, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370106
- SSM Health St Anthony Hospital - Oklahoma CityOklahoma City, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370037
Practice locations
Addresses where Siddhartha Rangineni is enrolled with Medicare (CMS data updated October 2, 2026).
- 4220 N Classen Blvd, Suite AOklahoma City, OK 73118 (405) 768‑5749
- 4401 S Western AveOklahoma City, OK 73109 (405) 636‑7000
Group practices
Medicare enrollment lists Siddhartha Rangineni as a member of these groups (CMS data updated October 2, 2026).
- INTEGRIS Ambulatory Care Corporation685 clinicians in the group
- Spectrum Healthcare Solutions, PLLC20 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Other clinicians in INTEGRIS Ambulatory Care Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780817700 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians