Quick answers
- Does Shiva Shabnam accept Medicare assignment?
- Yes. Medicare's clinician data says Shiva Shabnam 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 Shiva Shabnam see?
- In 2024, CMS data shows 490 Original Medicare patients and 887 services for Shiva Shabnam. This counts Original Medicare only and measures volume, not quality.
- What is Shiva Shabnam's NPI number?
- 1679802037. 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 Shiva Shabnam, 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 | 490 |
|---|---|
| Services billed to Medicare | 887 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)248 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)178 services
- Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow (G0181)107 services
- Advance care planning, first 30 minutes (99497)64 services
- Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)61 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%
- Arthritis73%
- Ischemic heart disease63%
- Diabetes59%
- Heart failure50%
Practice locations
Addresses where Shiva Shabnam is enrolled with Medicare (CMS data updated October 2, 2026).
- 3090 Bristol St, Suite 200Costa Mesa, CA 92626 (888) 789‑9585
- 3850 Smith St, Unit 3Union City, CA 94587 (213) 567‑4520
Group practices
Medicare enrollment lists Shiva Shabnam as a member of these groups (CMS data updated October 2, 2026).
- GN Medical Associates, Inc39 clinicians in the group
- Mobile Care Medical Group Inc4 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Costa Mesa
Clinicians with the same Medicare primary specialty in Costa Mesa, CA — not a recommendation.
Other clinicians in GN Medical Associates, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2007 (19 years since medical school) |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679802037 |
| 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
- 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