Doctor profile · Federal record
Dr. Neal Birnbaum, M.D.
Rheumatology Physician (CMS: Rheumatology) · San Rafael, CA
- NPI 1437142882
- MIPS 75.0 / 100 · 2023
- 56 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
4000 Civic Center Dr Ste 200A
San Rafael, CA 949035233
(415) 464-9604
fax (415) 464-0171 - Additional location
-
2100 Webster St, Ste 112
San Francisco, CA 941152373
(415) 923-3060
fax (415) 749-0841
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- March 14, 2025
- Year of graduation
- 1970 — 56 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- California #C36561
- Medicaid
- CA #GR0046000
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1437142882. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
24,979
Distinct HCPCS
10
Medicare allowed
$426,487
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J1602 |
Injection, golimumab, 1 mg, for intravenous use | 21,943 | 27 | $13 | |
J0897 |
Injection, denosumab, 1 mg | 2,100 | 21 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 224 | 148 | $149 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 170 | 42 | $84 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 168 | 32 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 167 | 121 | $107 | |
J3489 |
Injection, zoledronic acid, 1 mg | 60 | 12 | $10 | |
96401 |
Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | 47 | 27 | $96 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $194 | |
20610 |
Aspiration and/or injection of fluid from large joint | 27 | 18 | $83 |
In context: peer comparison
Among 1 peers in San Rafael Rheumatology Physician, average services per provider: 2,081. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$23,460
Transactions
141
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 31 | $18,183.21 | |
| Amgen INC. | 18 | $3,091.53 | |
| Janssen Biotech, INC. | 28 | $582.31 | |
| Novartis Pharmaceuticals Corporation | 28 | $544.72 | |
| Ucb, INC. | 11 | $334.83 | |
| AstraZeneca Pharmaceuticals Lp | 6 | $187.36 | |
| Pfizer INC. | 4 | $123.61 | |
| Fresenius Kabi USA, LLC | 3 | $98.61 | |
| E.R. Squibb & Sons, L.L.C. | 4 | $89.33 | |
| Biocon Biologics INC | 2 | $53.31 | |
| Radius Health, INC. | 2 | $52.59 | |
| Genzyme Corporation | 1 | $33.14 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $31.28 | |
| Organon LLC | 1 | $28.83 | |
| Genentech USA, INC. | 1 | $25.35 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,280
Patients
270
Total drug cost
$2,841,199
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 319 | 106 | $5,115 |
| Hydroxychloroquine Sulfate | Generic | 212 | 57 | $15,505 |
| Methotrexate (Methotrexate Sodium) | Brand | 178 | 52 | $9,380 |
| Humira(Cf) Pen (Adalimumab) | Brand | 112 | 13 | $857,314 |
| Allopurinol | Generic | 92 | 26 | $1,840 |
| Enbrel (Etanercept) | Brand | 73 | 0 | $566,228 |
| Enbrel Sureclick (Etanercept) | Brand | 59 | 0 | $458,305 |
| Rinvoq (Upadacitinib) | Brand | 41 | 0 | $288,218 |
| Humira(Cf) (Adalimumab) | Brand | 40 | 0 | $304,956 |
| Folic Acid | Generic | 32 | 0 | $143 |
Hospital affiliations
Frequently asked questions
What is Dr. Neal Birnbaum's medical specialty?
Dr. Neal Birnbaum practices Rheumatology Physician in San Rafael, CA.
Where does Dr. Neal Birnbaum practice?
Dr. Neal Birnbaum practices at 4000 Civic Center Dr Ste 200A, San Rafael, CA 949035233. Office phone: 4154649604.
What is Dr. Neal Birnbaum's NPI?
Dr. Neal Birnbaum's National Provider Identifier (NPI) is 1437142882, issued by NPPES.
Does Dr. Neal Birnbaum accept Medicare assignment?
Dr. Neal Birnbaum does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Neal Birnbaum commonly perform?
Top Medicare-reported procedures in 2023: Injection, golimumab, 1 mg, for intravenous use (HCPCS J1602); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.