Doctor profile · Federal record
Dr. C. Michael Neuwelt, M.D.
Rheumatology Physician (CMS: Rheumatology) · San Leandro, CA
- NPI 1598786790
- Accepts Medicare
- MIPS 85.8 / 100 · 2023
- 51 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
13851 E 14Th St, Ste 301
San Leandro, CA 945782631
(510) 357-1303
fax (510) 357-5463
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 10, 2008
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #G38264
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598786790. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
53,136
Distinct HCPCS
10
Medicare allowed
$391,517
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0717 |
Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) | 52,001 | 20 | $5 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 324 | 210 | $148 | |
96401 |
Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 262 | 20 | $98 | |
96413 |
Administration of chemotherapy into vein, 1 hour or less | 199 | 35 | $172 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 76 | 58 | $106 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 68 | 58 | $107 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 62 | 13 | $1 | |
96372 |
Injection of drug or substance under skin or into muscle | 54 | 25 | $18 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 30 | 30 | $197 | |
99441 |
Telephone medical discussion with physician, 5-10 minutes | 29 | 27 | $68 |
In context: peer comparison
Among 1 peers in San Leandro Rheumatology Physician, average services per provider: 4,428. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$25,965
Transactions
66
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 28 | $17,598.57 | |
| GlaxoSmithKline, LLC. | 8 | $7,621.37 | |
| Ucb, INC. | 7 | $178.47 | |
| Amgen INC. | 6 | $178.00 | |
| Abbvie INC. | 4 | $99.52 | |
| Aurinia Pharma U.S., INC. | 3 | $66.08 | |
| Pfizer INC. | 2 | $47.32 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $44.71 | |
| Novartis Pharmaceuticals Corporation | 2 | $44.67 | |
| Janssen Biotech, INC. | 2 | $40.54 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $22.82 | |
| Genzyme Corporation | 1 | $22.57 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,700
Patients
458
Total drug cost
$328,156
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 452 | 112 | $7,141 |
| Hydroxychloroquine Sulfate | Generic | 273 | 84 | $13,890 |
| Methotrexate (Methotrexate Sodium) | Brand | 204 | 64 | $13,879 |
| Gabapentin | Generic | 181 | 47 | $3,605 |
| Diclofenac Sodium | Generic | 130 | 51 | $5,143 |
| Sulfasalazine | Generic | 94 | 30 | $2,215 |
| Azathioprine | Generic | 56 | 13 | $3,537 |
| Trazodone Hcl | Generic | 51 | 12 | $456 |
| Duloxetine Hcl | Generic | 48 | 18 | $1,660 |
| Colchicine | Generic | 41 | 15 | $6,084 |
Hospital affiliations
Frequently asked questions
What is Dr. C. Michael Neuwelt's medical specialty?
Dr. C. Michael Neuwelt practices Rheumatology Physician in San Leandro, CA.
Where does Dr. C. Michael Neuwelt practice?
Dr. C. Michael Neuwelt practices at 13851 E 14Th St, San Leandro, CA 945782631. Office phone: 5103571303.
What is Dr. C. Michael Neuwelt's NPI?
Dr. C. Michael Neuwelt's National Provider Identifier (NPI) is 1598786790, issued by NPPES.
Does Dr. C. Michael Neuwelt accept Medicare assignment?
Yes. Dr. C. Michael Neuwelt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. C. Michael Neuwelt commonly perform?
Top Medicare-reported procedures in 2023: Injection, certolizumab pegol, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered) (HCPCS J0717); Established patient office or other outpatient visit (HCPCS 99214); Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle (HCPCS 96401). Source: CMS Medicare Physician & Other Practitioners file.