Doctor profile · Federal record
Dr. Michael Sim, M.D.
Nephrology Physician (CMS: Nephrology) · Sacramento, CA
- NPI 1811972771
- Accepts Medicare
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6600 Bruceville RD, Mob 3, 3Rd Floor
Sacramento, CA 958234671
(916) 688-6988
fax (916) 688-6507
Credentials & registration
- NPI registered
- December 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- California #A86300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811972771. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
492
Distinct HCPCS
5
Medicare allowed
$53,278
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 329 | 200 | $100 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 56 | 52 | $68 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 39 | 39 | $138 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 39 | 32 | $149 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 29 | 29 | $182 |
In context: peer comparison
Among 20 peers in Sacramento Nephrology Physician, average services per provider: 105. This provider delivers 4.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
664
Patients
130
Total drug cost
$118,150
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Calcitriol | Generic | 148 | 34 | $3,076 |
| Amlodipine Besylate | Generic | 107 | 27 | $1,121 |
| Furosemide | Generic | 72 | 23 | $483 |
| Tamsulosin Hcl | Generic | 55 | 17 | $1,236 |
| Jardiance (Empagliflozin) | Brand | 47 | 14 | $45,647 |
| Losartan Potassium | Generic | 40 | 15 | $1,291 |
| Potassium Chloride | Generic | 27 | 0 | $1,656 |
| Veltassa (Patiromer Calcium Sorbitex) | Brand | 26 | 0 | $26,010 |
| Clonidine | Generic | 24 | 0 | $2,900 |
| Allopurinol | Generic | 23 | 0 | $460 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Sim's medical specialty?
Dr. Michael Sim practices Nephrology Physician in Sacramento, CA.
Where does Dr. Michael Sim practice?
Dr. Michael Sim practices at 6600 Bruceville RD, Sacramento, CA 958234671. Office phone: 9166886988.
What is Dr. Michael Sim's NPI?
Dr. Michael Sim's National Provider Identifier (NPI) is 1811972771, issued by NPPES.
Does Dr. Michael Sim accept Medicare assignment?
Yes. Dr. Michael Sim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Sim commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.