Doctor profile · Federal record
Dr. Catherine Gentemann, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Huntington Beach, CA
- NPI 1215043526
- Accepts Medicare
- 33 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
17762 Beach Blvd, Suite 220
Huntington Beach, CA 926476860
(714) 848-0080
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- March 9, 2017
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G081721
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215043526. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,126
Distinct HCPCS
10
Medicare allowed
$74,682
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 510 | 206 | $96 | |
36415 |
Insertion of needle into vein for collection of blood sample | 298 | 161 | $6 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 78 | 70 | $79 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 47 | 47 | $47 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 31 | 31 | $282 | |
G0009 |
Administration of pneumococcal vaccine | 30 | 30 | $34 | |
G0008 |
Administration of influenza virus vaccine | 29 | 29 | $34 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 27 | 25 | $16 | |
90662 |
Influenza vaccine split virus, preservative free | 25 | 25 | $72 | |
81002 |
Urinalysis, manual test | 20 | 16 | $3 |
In context: peer comparison
Among 11 peers in Huntington Beach Internal Medicine Physician, average services per provider: 168. This provider delivers 6.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,796
Patients
536
Total drug cost
$29,580
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 264 | 74 | $3,504 |
| Levothyroxine Sodium | Generic | 235 | 63 | $4,479 |
| Losartan Potassium | Generic | 171 | 46 | $2,718 |
| Rosuvastatin Calcium | Generic | 167 | 53 | $6,528 |
| Amlodipine Besylate | Generic | 131 | 43 | $1,189 |
| Gabapentin | Generic | 108 | 36 | $1,320 |
| Lisinopril | Generic | 105 | 33 | $1,521 |
| Hydrochlorothiazide | Generic | 95 | 31 | $592 |
| Metoprolol Succinate | Generic | 94 | 28 | $2,437 |
| Escitalopram Oxalate | Generic | 84 | 21 | $1,461 |
Hospital affiliations
Frequently asked questions
What is Dr. Catherine Gentemann's medical specialty?
Dr. Catherine Gentemann practices Internal Medicine Physician in Huntington Beach, CA.
Where does Dr. Catherine Gentemann practice?
Dr. Catherine Gentemann practices at 17762 Beach Blvd, Huntington Beach, CA 926476860. Office phone: 7148480080.
What is Dr. Catherine Gentemann's NPI?
Dr. Catherine Gentemann's National Provider Identifier (NPI) is 1215043526, issued by NPPES.
Does Dr. Catherine Gentemann accept Medicare assignment?
Yes. Dr. Catherine Gentemann accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Gentemann commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.