Doctor profile · Federal record

Dr. Stephen Diamantoni, M.D.

Family Medicine Physician (CMS: Family Practice) · Lancaster, PA

  • NPI 1831240100
  • Accepts Medicare
  • MIPS 65.4 / 100 · 2023
  • 44 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
734 N Franklin St
Lancaster, PA 176022176
(717) 295-2323
fax (717) 295-7294

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
June 7, 2011
Year of graduation
1982 — 44 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Pennsylvania #MD029374E
Medicaid
PA #0009958720001

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831240100. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,092
Distinct HCPCS
10
Medicare allowed
$131,007
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 688 276 $121
36415 Insertion of needle into vein for collection of blood sample 374 225 $8
99213 Established patient office or other outpatient visit, 20-29 minutes 295 182 $83
93793 Anticoagulant management of patient taking warfarin 140 12 $11
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month 109 20 $59
G0008 Administration of influenza virus vaccine 100 95 $27
80305 Testing for presence of drug, read by direct observation 62 18 $12
90686 Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 60 58 $21
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 44 41 $14
90662 Influenza vaccine split virus, preservative free 42 42 $71

In context: peer comparison

Among 60 peers in this city , average services per provider: 81. This provider delivers 26× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$4,115
Transactions
199
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
ABBVIE INC. 49 $674.82
AstraZeneca Pharmaceuticals LP 28 $595.60
Lilly USA, LLC 24 $419.04
Novo Nordisk Inc 21 $341.94
Supernus Pharmaceuticals, Inc. 5 $308.31
PFIZER INC. 18 $231.24
Astellas Pharma US Inc 8 $209.55
Bayer Healthcare Pharmaceuticals Inc. 10 $149.17
Phathom Pharmaceuticals, Inc. 7 $138.29
Boehringer Ingelheim Pharmaceuticals, Inc. 7 $114.03
Janssen Pharmaceuticals, Inc 6 $107.97
Merck Sharp & Dohme LLC 5 $82.08
Amgen Inc. 4 $69.64
Lexicon Pharmaceuticals, Inc. 4 $68.50
GlaxoSmithKline, LLC. 3 $63.09

By nature of payment

Food and Beverage
$4,115

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
6,365
Patients
1,815
Total drug cost
$385,566
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,008 293 $15,286
Amlodipine Besylate Generic 622 185 $4,100
Lisinopril Generic 608 172 $4,779
Metformin Hcl Generic 593 169 $5,467
Hydrochlorothiazide Generic 484 130 $1,795
Omeprazole Generic 441 135 $6,714
Levothyroxine Sodium Generic 438 119 $6,366
Losartan Potassium Generic 379 110 $4,295
Gabapentin Generic 358 107 $6,793
Rosuvastatin Calcium Generic 305 82 $9,070

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Diamantoni's medical specialty?
Dr. Stephen Diamantoni practices Family Medicine Physician in Lancaster, PA.
Where does Dr. Stephen Diamantoni practice?
Dr. Stephen Diamantoni practices at 734 N Franklin St, Lancaster, PA 176022176. Office phone: 7172952323.
What is Dr. Stephen Diamantoni's NPI?
Dr. Stephen Diamantoni's National Provider Identifier (NPI) is 1831240100, issued by NPPES.
Does Dr. Stephen Diamantoni accept Medicare assignment?
Yes. Dr. Stephen Diamantoni accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Diamantoni 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.