Doctor profile · Federal record

Dr. James McCallum, M.D.

Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · La Jolla, CA

  • NPI 1609838994
  • Accepts Medicare
  • 36 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9898 Genesee Ave
La Jolla, CA 920371205
(858) 824-5335
fax (858) 964-3131
Mailing address
10790 Rancho Bernardo RD
San Diego, CA 921275705

Credentials & registration

NPPES · NUCC
NPI registered
April 2006 — 20 yrs on file
Profile last updated
March 9, 2020
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207RE0101X — NUCC code
State license (1)
California #A55708
Medicaid
CA #00A557080

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609838994. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
29,358
Distinct HCPCS
10
Medicare allowed
$224,051
HCPCS Description Services Patients Avg allowed
J1071 Injection, testosterone cypionate, 1 mg 24,500 12 $0
J0897 Injection, denosumab, 1 mg 3,360 50 $21
99214 Established patient office or other outpatient visit, 30-39 minutes 715 458 $135
95251 Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 236 126 $35
96372 Injection of drug or substance under skin or into muscle 207 78 $15
99204 New patient office or other outpatient visit, 45-59 minutes 90 90 $176
76536 Ultrasound scan of head and neck soft tissue 66 64 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 58 51 $97
99203 New patient office or other outpatient visit, 30-44 minutes 49 49 $120
99215 Established patient office or other outpatient visit, 40-54 minutes 25 25 $189

In context: peer comparison

Among 8 peers in this city , average services per provider: 907. This provider delivers 32× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$913
Transactions
22
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Eli Lilly and Company 10 $682.69
Insulet Corporation 2 $68.15
Antares Pharma, Inc. 2 $39.56
Neurocrine Biosciences, Inc. 1 $27.15
Medtronic, Inc. 1 $24.79
Xeris Pharmaceuticals, Inc. 1 $24.05
ViiV Healthcare Company 1 $17.81
Lilly USA, LLC 2 $15.37
BETA BIONICS, INC. 2 $13.76

By nature of payment

Food and Beverage
$546
Travel and Lodging
$367

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,638
Patients
774
Total drug cost
$1,048,310
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 446 130 $9,128
Metformin Hcl Er (Metformin Hcl) Brand 251 80 $6,420
Synthroid (Levothyroxine Sodium) Brand 224 56 $21,206
Atorvastatin Calcium Generic 217 64 $2,891
Metformin Hcl Generic 211 65 $3,242
Trulicity (Dulaglutide) Brand 195 38 $294,235
Ozempic (Semaglutide) Brand 178 53 $266,022
Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) Brand 166 61 $120,831
Jardiance (Empagliflozin) Brand 163 40 $205,323
Glimepiride Generic 116 32 $1,921

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. James McCallum's medical specialty?
Dr. James McCallum practices Endocrinology, Diabetes & Metabolism Physician in La Jolla, CA.
Where does Dr. James McCallum practice?
Dr. James McCallum practices at 9898 Genesee Ave, La Jolla, CA 920371205. Office phone: 8588245335.
What is Dr. James McCallum's NPI?
Dr. James McCallum's National Provider Identifier (NPI) is 1609838994, issued by NPPES.
Does Dr. James McCallum accept Medicare assignment?
Yes. Dr. James McCallum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James McCallum commonly perform?
Top Medicare-reported procedures in 2023: Injection, testosterone cypionate, 1 mg (HCPCS J1071); Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.