Doctor profile · Federal record
Dr. Nehemiah Tan, M.D.
Rheumatology Physician (CMS: Rheumatology) · Mattoon, IL
- NPI 1578520995
- Accepts Medicare
- MIPS 9.1 / 100 · 2023
- 37 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
200 Richmond Ave E Ste 3
Mattoon, IL 619384652
(217) 238-7000
fax (217) 234-2060 - Mailing address
-
Po Box 372
Mattoon, IL 619380372
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- April 6, 2026
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Illinois #036085107
- Medicaid
- IL #036085107
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578520995. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
26,897
Distinct HCPCS
10
Medicare allowed
$1,158,045
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0129 |
Injection, abatacept, 10 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) | 20,200 | 25 | $42 | |
J1745 |
Injection, infliximab, excludes biosimilar, 10 mg | 4,190 | 20 | $33 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 940 | 422 | $86 | |
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 569 | 48 | $1 | |
96365 |
Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less | 369 | 47 | $59 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 283 | 190 | $123 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 116 | 116 | $160 | |
96366 |
Infusion into a vein for therapy, prevention, or diagnosis, each additional hour | 115 | 20 | $19 | |
20610 |
Aspiration and/or injection of fluid from large joint | 69 | 38 | $61 | |
96372 |
Injection of drug or substance under skin or into muscle | 28 | 13 | $13 |
In context: peer comparison
Among 1 peers in Mattoon Rheumatology Physician, average services per provider: 2,445. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$646
Transactions
34
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen INC. | 16 | $290.92 | |
| Abbvie INC. | 6 | $115.96 | |
| AstraZeneca Pharmaceuticals Lp | 2 | $41.44 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $35.92 | |
| GlaxoSmithKline, LLC. | 2 | $34.44 | |
| Novartis Pharmaceuticals Corporation | 2 | $33.68 | |
| Ucb, INC. | 1 | $21.45 | |
| Fresenius Kabi USA, LLC | 1 | $20.82 | |
| Janssen Biotech, INC. | 1 | $18.72 | |
| Sandoz INC. | 1 | $18.32 | |
| Radius Health, INC. | 1 | $13.91 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,507
Patients
940
Total drug cost
$1,002,372
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Generic | 807 | 212 | $56,279 |
| Methotrexate (Methotrexate Sodium) | Brand | 783 | 207 | $32,655 |
| Prednisone | Generic | 412 | 163 | $3,069 |
| Duloxetine Hcl | Generic | 410 | 99 | $14,955 |
| Tramadol Hcl | Generic | 247 | 64 | $1,640 |
| Sulfasalazine | Generic | 204 | 49 | $4,678 |
| Pregabalin | Generic | 114 | 21 | $4,354 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 93 | 22 | $1,439 |
| Leflunomide | Generic | 88 | 21 | $5,293 |
| Alendronate Sodium | Generic | 77 | 28 | $898 |
Hospital affiliations
Frequently asked questions
What is Dr. Nehemiah Tan's medical specialty?
Dr. Nehemiah Tan practices Rheumatology Physician in Mattoon, IL.
Where does Dr. Nehemiah Tan practice?
Dr. Nehemiah Tan practices at 200 Richmond Ave E Ste 3, Mattoon, IL 619384652. Office phone: 2172387000.
What is Dr. Nehemiah Tan's NPI?
Dr. Nehemiah Tan's National Provider Identifier (NPI) is 1578520995, issued by NPPES.
Does Dr. Nehemiah Tan accept Medicare assignment?
Yes. Dr. Nehemiah Tan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nehemiah Tan commonly perform?
Top Medicare-reported procedures in 2023: Injection, abatacept, 10 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 J0129); Injection, infliximab, excludes biosimilar, 10 mg (HCPCS J1745); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.