Doctor profile · Federal record

Dr. Diwakar Lingam, M.D.

Hospitalist Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Hospitalist Physician · Roseville, CA

  • NPI 1952324311
  • Accepts Medicare
  • 22 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2 Medical Plaza Dr Ste 175
Roseville, CA 956613049
(603) 653-3305
Mailing address
1 Medical Center Dr
Lebanon, NH 037561000

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
May 24, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
New Hampshire #17114 · New York #002662
Medicaid
NY #02792556

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952324311. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
6,532
Distinct HCPCS
10
Medicare allowed
$792,124
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 1,116 779 $133
J2785 Injection, regadenoson, 0.1 mg 920 229 $53
A9502 Technetium tc-99m tetrofosmin, diagnostic, per study dose 720 360 $96
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect 577 358 $300
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 577 571 $70
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 569 559 $213
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 370 339 $15
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 359 358 $66
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 277 174 $80
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 190 179 $177

In context: peer comparison

Among 22 peers in Roseville Hospitalist Physician, average services per provider: 146. This provider delivers 45× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,464
Transactions
84
Manufacturers
14
Payer (manufacturer) Industry Txns Amount
E.R. Squibb & Sons, L.L.C. 25 $344.94
Amgen INC. 20 $304.01
Novartis Pharmaceuticals Corporation 15 $214.60
Novo Nordisk INC 4 $95.39
AstraZeneca Pharmaceuticals Lp 5 $86.04
Medtronic, INC. 1 $85.76
Scpharmaceuticals INC. 2 $56.70
Boehringer Ingelheim Pharmaceuticals, INC. 2 $53.63
Janssen Pharmaceuticals, INC 2 $44.08
Sanofi-Aventis U.S. LLC 2 $43.71
Alnylam Pharmaceuticals INC. 2 $41.52
Bayer Healthcare Pharmaceuticals INC. 2 $35.36
Kiniksa Pharmaceuticals International, Plc 1 $31.26
Pfizer INC. 1 $26.64

By nature of payment

Food and Beverage
$1,455
Education
$9

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,534
Patients
1,127
Total drug cost
$837,196
Drug Type Claims Patients Total cost
Eliquis (Apixaban) Brand 596 148 $651,297
Atorvastatin Calcium Generic 510 168 $9,533
Metoprolol Succinate Generic 443 154 $9,541
Metoprolol Tartrate Generic 288 92 $3,175
Furosemide Generic 269 101 $2,195
Losartan Potassium Generic 233 79 $3,838
Lisinopril Generic 210 64 $1,986
Carvedilol Generic 202 63 $2,951
Rosuvastatin Calcium Generic 194 68 $5,462
Amlodipine Besylate Generic 143 49 $1,829

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Diwakar Lingam's medical specialty?
Dr. Diwakar Lingam practices Hospitalist Physician in Roseville, CA.
Where does Dr. Diwakar Lingam practice?
Dr. Diwakar Lingam practices at 2 Medical Plaza Dr Ste 175, Roseville, CA 956613049. Office phone: 6036533305.
What is Dr. Diwakar Lingam's NPI?
Dr. Diwakar Lingam's National Provider Identifier (NPI) is 1952324311, issued by NPPES.
Does Dr. Diwakar Lingam accept Medicare assignment?
Yes. Dr. Diwakar Lingam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diwakar Lingam commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Injection, regadenoson, 0.1 mg (HCPCS J2785); Technetium tc-99m tetrofosmin, diagnostic, per study dose (HCPCS A9502). Source: CMS Medicare Physician & Other Practitioners file.