Doctor profile · Federal record
Dr. Jonathon Schwartz, MD
Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Cambridge, MA
- NPI 1689644932
- Accepts Medicare
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1575 Cambridge St, Spaulding Hospital Cambridge
Cambridge, MA 021384308
(617) 876-4344
fax (617) 234-7981 - Additional location
-
300 Mount Auburn St Ste 515
Cambridge, MA 021385665
(617) 864-1571
fax (617) 864-1507
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- November 18, 2024
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Massachusetts #160454
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689644932. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
190
Distinct HCPCS
4
Medicare allowed
$18,061
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 120 | 48 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 39 | 22 | $127 | |
90935 |
Hemodialysis procedure with physician evaluation | 20 | 12 | $76 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $138 |
In context: peer comparison
Among 3 peers in Cambridge Nephrology Physician, average services per provider: 41. This provider delivers 4.6× the peer median.Frequently asked questions
What is Dr. Jonathon Schwartz's medical specialty?
Dr. Jonathon Schwartz practices Nephrology Physician in Cambridge, MA.
Where does Dr. Jonathon Schwartz practice?
Dr. Jonathon Schwartz practices at 1575 Cambridge St, Cambridge, MA 021384308. Office phone: 6178764344.
What is Dr. Jonathon Schwartz's NPI?
Dr. Jonathon Schwartz's National Provider Identifier (NPI) is 1689644932, issued by NPPES.
Does Dr. Jonathon Schwartz accept Medicare assignment?
Yes. Dr. Jonathon Schwartz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathon Schwartz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hemodialysis procedure with physician evaluation (HCPCS 90935). Source: CMS Medicare Physician & Other Practitioners file.