Doctor profile · Federal record
Dr. Mary Ann Bishop, MD
Nephrology Physician (CMS: Nephrology) · Gaithersburg, MD
- NPI 1609929801
- Accepts Medicare
- 46 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7 Metropolitan CT Ste 1
Gaithersburg, MD 208784016
(240) 773-0300 - Mailing address
-
9808 Log House CT
Gaithersburg, MD 208822704
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- August 21, 2020
- Year of graduation
- 1980 — 46 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Maryland #D0037504
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1609929801. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
118
Distinct HCPCS
4
Medicare allowed
$8,550
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 49 | 30 | $50 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 28 | 22 | $80 | |
90935 |
Hemodialysis procedure with physician evaluation | 26 | 19 | $72 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 15 | $132 |
In context: peer comparison
Among 1 peers in Gaithersburg Nephrology Physician, average services per provider: 29. This provider delivers 4.1× the peer median.Frequently asked questions
What is Dr. Mary Ann Bishop's medical specialty?
Dr. Mary Ann Bishop practices Nephrology Physician in Gaithersburg, MD.
Where does Dr. Mary Ann Bishop practice?
Dr. Mary Ann Bishop practices at 7 Metropolitan CT Ste 1, Gaithersburg, MD 208784016. Office phone: 2407730300.
What is Dr. Mary Ann Bishop's NPI?
Dr. Mary Ann Bishop's National Provider Identifier (NPI) is 1609929801, issued by NPPES.
Does Dr. Mary Ann Bishop accept Medicare assignment?
Yes. Dr. Mary Ann Bishop accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Ann Bishop commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hemodialysis procedure with physician evaluation (HCPCS 90935). Source: CMS Medicare Physician & Other Practitioners file.