Doctor profile · Federal record
Dr. Cynthia Korzelius, M.D.
Nephrology Physician (CMS: Nephrology) · Internal Medicine Physician · Newton, MA
- NPI 1932175379
- Accepts Medicare
- 30 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2014 Washington St, Newton Wellesley Hospital, Hospitalist Suite, 2 North
Newton, MA 024621607
(617) 243-6433
fax (617) 243-5148 - Mailing address
-
2014 Washington St # 2N
Newton, MA 024621607
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1996 — 30 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Massachusetts #156597
- Medicaid
- MA #3191214
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1932175379. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
483
Distinct HCPCS
6
Medicare allowed
$49,552
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 236 | 91 | $84 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 116 | 73 | $126 | |
99239 |
Hospital discharge day management, more than 30 minutes | 79 | 77 | $123 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 24 | 13 | $53 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 17 | $184 | |
99238 |
Hospital discharge day management, 30 minutes or less | 11 | 11 | $87 |
In context: peer comparison
Among 3 peers in Newton Nephrology Physician, average services per provider: 131. This provider delivers 3.7× the peer median.Frequently asked questions
What is Dr. Cynthia Korzelius's medical specialty?
Dr. Cynthia Korzelius practices Nephrology Physician in Newton, MA.
Where does Dr. Cynthia Korzelius practice?
Dr. Cynthia Korzelius practices at 2014 Washington St, Newton, MA 024621607. Office phone: 6172436433.
What is Dr. Cynthia Korzelius's NPI?
Dr. Cynthia Korzelius's National Provider Identifier (NPI) is 1932175379, issued by NPPES.
Does Dr. Cynthia Korzelius accept Medicare assignment?
Yes. Dr. Cynthia Korzelius accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cynthia Korzelius 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.