DR. ROBERT GABRIEL FELDMAN (M.D.) – Geriatric Medicine (Internal Medicine) Physician, NPI 1194805416
Geriatric Medicine (Internal Medicine) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
21,511 INTERNAL MEDICINE in CA
Provider Addresses for DR. ROBERT GABRIEL FELDMAN (M.D.)
23961 CALLE DE LA MAGDALENA STE 429
LAGUNA HILLS, CA 926533685
Phone: (949) 452-1930
Fax: (949) 452-0301
Type: Location
23961, Calle de la Magdalena, Laguna Hills, Orange County, California, 92653, United States
SUITE 333
LAGUNA HILLS, CA 926533616
Phone: (949) 452-1930
Fax: (949) 452-0301
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 743 Open Payments records for all available years, with a total value of $454,988.
Total Amount is formed as General ($454,633) + Research ($355) + Ownership ($0) = $454,988.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($252,514).
Total Amount
$454,988
General + Research + Ownership
Payments
743
Total payment records
General Amount
$454,633
General payments
Research Amount
$355
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $252,514 |
| Amgen Inc. | $178,225 |
| Merck Sharp & Dohme LLC | $22,123 |
| ACADIA Pharmaceuticals Inc | $1,600 |
| Eli Lilly and Company | $355 |
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: 2004-12-14
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 |
|---|---|---|---|---|
| I20041214001238 | I | Internal Medicine | CA | 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 |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 6,421 | 65 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 645 | 224 | $0 |
| 96372 | Injection of drug or substance under skin or into muscle | 192 | 71 | $0 |
| 99441 | Telephone medical discussion with physician, 5-10 minutes | 190 | 105 | $0 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 172 | 172 | $0 |
Insurance plans in this area (ZIP 92653)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | CA | 90670 | Pneumococcal vaccine for injection into muscle | 26 | 26 |
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