Doctor profile · Federal record
Dr. Cathy Riker, MD
Rheumatology Physician (CMS: Rheumatology) · Internal Medicine Physician · Menlo Park, CA
- NPI 1255448189
- Accepts Medicare
- 40 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1300 Crane St
Menlo Park, CA 940254260
(650) 498-6500 - Additional location
-
Po Box 60000, File #72484
San Francisco, CA 941600001
(999) 999-9999
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 16, 2024
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #G74920
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255448189. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
669
Distinct HCPCS
6
Medicare allowed
$124,488
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 477 | 180 | $209 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 108 | 67 | $151 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 26 | 24 | $36 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 22 | 22 | $255 | |
90662 |
Influenza vaccine split virus, preservative free | 18 | 18 | $72 | |
G0008 |
Administration of influenza virus vaccine | 18 | 18 | $36 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 111. This provider delivers 6.0× the peer median.Open Payments
Industry payments received
All-time total
$110
Transactions
5
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 3 | $55.85 | |
| GlaxoSmithKline, LLC. | 1 | $28.88 | |
| Lilly USA, LLC | 1 | $24.95 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
846
Patients
171
Total drug cost
$1,045,542
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 219 | 54 | $3,345 |
| Hydroxychloroquine Sulfate | Generic | 182 | 45 | $9,262 |
| Methotrexate (Methotrexate Sodium) | Brand | 93 | 29 | $3,370 |
| Allopurinol | Generic | 62 | 16 | $1,192 |
| Humira(Cf) Pen (Adalimumab) | Brand | 42 | 0 | $389,357 |
| Alendronate Sodium | Generic | 35 | 15 | $457 |
| Cevimeline Hcl | Generic | 35 | 0 | $11,099 |
| Leucovorin Calcium | Generic | 32 | 12 | $907 |
| Sulfasalazine Dr (Sulfasalazine) | Brand | 25 | 0 | $1,377 |
| Cosentyx Sensoready Pen (Secukinumab) | Brand | 24 | 0 | $171,203 |
Hospital affiliations
Frequently asked questions
What is Dr. Cathy Riker's medical specialty?
Dr. Cathy Riker practices Rheumatology Physician in Menlo Park, CA.
Where does Dr. Cathy Riker practice?
Dr. Cathy Riker practices at 1300 Crane St, Menlo Park, CA 940254260. Office phone: 6504986500.
What is Dr. Cathy Riker's NPI?
Dr. Cathy Riker's National Provider Identifier (NPI) is 1255448189, issued by NPPES.
Does Dr. Cathy Riker accept Medicare assignment?
Yes. Dr. Cathy Riker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cathy Riker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212). Source: CMS Medicare Physician & Other Practitioners file.