Doctor profile · Federal record
Dr. Jonathan Kay, MD
Rheumatology Physician (CMS: Rheumatology) · Internal Medicine Physician · Worcester, MA
- NPI 1699766964
- Accepts Medicare
- MIPS 89.0 / 100 · 2023
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
119 Belmont St
Worcester, MA 016052903
(508) 793-6936 - Mailing address
-
Po Box 415348
Boston, MA 022415348
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- November 17, 2020
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Massachusetts #55522
- Medicaid
- MA #110046826A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1699766964. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
306
Distinct HCPCS
5
Medicare allowed
$28,713
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 189 | 114 | $99 | |
20610 |
Aspiration and/or injection of fluid from large joint | 50 | 24 | $60 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 34 | 17 | $67 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $136 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 15 | 12 | $146 |
In context: peer comparison
Among 13 peers in Worcester Rheumatology Physician, average services per provider: 108. This provider delivers 2.8× the peer median.Open Payments
Industry payments received
All-time total
$6,315
Transactions
4
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Hexal Ag | 1 | $4,900.00 | |
| Organon LLC | 2 | $1,390.00 | |
| Lilly USA, LLC | 1 | $25.09 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
694
Patients
145
Total drug cost
$1,055,805
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Methotrexate (Methotrexate Sodium) | Brand | 247 | 72 | $14,759 |
| Allopurinol | Generic | 80 | 21 | $1,679 |
| Naproxen | Generic | 55 | 27 | $954 |
| Leucovorin Calcium | Generic | 45 | 12 | $2,786 |
| Humira(Cf) Pen (Adalimumab) | Brand | 44 | 0 | $344,535 |
| Xeljanz (Tofacitinib Citrate) | Brand | 31 | 0 | $175,683 |
| Hydroxychloroquine Sulfate | Generic | 30 | 0 | $1,250 |
| Prednisone | Generic | 29 | 13 | $166 |
| Actemra Actpen (Tocilizumab) | Brand | 25 | 0 | $92,296 |
| Folic Acid | Generic | 24 | 0 | $84 |
Hospital affiliations
Frequently asked questions
What is Dr. Jonathan Kay's medical specialty?
Dr. Jonathan Kay practices Rheumatology Physician in Worcester, MA.
Where does Dr. Jonathan Kay practice?
Dr. Jonathan Kay practices at 119 Belmont St, Worcester, MA 016052903. Office phone: 5087936936.
What is Dr. Jonathan Kay's NPI?
Dr. Jonathan Kay's National Provider Identifier (NPI) is 1699766964, issued by NPPES.
Does Dr. Jonathan Kay accept Medicare assignment?
Yes. Dr. Jonathan Kay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Kay commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Aspiration and/or injection of fluid from large joint (HCPCS 20610); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.