Doctor profile · Federal record
Dr. Ellen Grimm, MD
Nephrology Physician (CMS: Nephrology) · San Marcos, TX
- NPI 1275500100
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 34 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1330 Wonder World Dr
San Marcos, TX 786667566
(512) 805-0680
fax (512) 805-0682 - Mailing address
-
12221 N Mopac Expy
Austin, TX 787582401
Credentials & registration
- NPI registered
- February 2006 — 20 yrs on file
- Profile last updated
- February 1, 2022
- Year of graduation
- 1992 — 34 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Texas #J4170
- Medicaid (2)
- TX #101802002 · TX #101802004
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1275500100. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
861
Distinct HCPCS
9
Medicare allowed
$173,190
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 242 | 37 | $345 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 166 | 92 | $123 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 148 | 66 | $78 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 127 | 35 | $290 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 78 | 50 | $116 | |
90935 |
Hemodialysis procedure with physician evaluation | 30 | 21 | $71 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 26 | 22 | $88 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 22 | 12 | $169 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 22 | $167 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 135. This provider delivers 6.4× the peer median.Open Payments
Industry payments received
All-time total
$282
Transactions
7
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Fresenius USA Marketing, Inc. | 4 | $123.65 | |
| Aurinia Pharma U.S., Inc. | 1 | $119.77 | |
| Ardelyx, Inc. | 1 | $23.26 | |
| AstraZeneca Pharmaceuticals LP | 1 | $15.13 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,279
Patients
358
Total drug cost
$221,534
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 140 | 40 | $1,581 |
| Losartan Potassium | Generic | 125 | 37 | $1,964 |
| Furosemide | Generic | 122 | 30 | $1,226 |
| Sevelamer Carbonate | Generic | 106 | 30 | $32,953 |
| Allopurinol | Generic | 90 | 23 | $1,029 |
| Hydralazine Hcl | Generic | 80 | 25 | $1,125 |
| Carvedilol | Generic | 78 | 25 | $713 |
| Calcitriol | Generic | 75 | 22 | $1,203 |
| Atorvastatin Calcium | Generic | 71 | 25 | $846 |
| Lisinopril | Generic | 69 | 21 | $432 |
Hospital affiliations
Frequently asked questions
What is Dr. Ellen Grimm's medical specialty?
Dr. Ellen Grimm practices Nephrology Physician in San Marcos, TX.
Where does Dr. Ellen Grimm practice?
Dr. Ellen Grimm practices at 1330 Wonder World Dr, San Marcos, TX 786667566. Office phone: 5128050680.
What is Dr. Ellen Grimm's NPI?
Dr. Ellen Grimm's National Provider Identifier (NPI) is 1275500100, issued by NPPES.
Does Dr. Ellen Grimm accept Medicare assignment?
Yes. Dr. Ellen Grimm accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ellen Grimm commonly perform?
Top Medicare-reported procedures in 2023: Dialysis services, 4 or more physician visits per month (20 years or older) (HCPCS 90960); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.