Doctor profile · Federal record

Dr. Mary Chitwood, MD

Family Medicine Physician (CMS: Family Practice) · Arnold, MO

  • NPI 1376504621
  • Accepts Medicare
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3619 Richardson Square Dr, Suite 170
Arnold, MO 63010
(636) 717-6776
fax (314) 525-4055

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
August 27, 2013
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Missouri #2002014087

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376504621. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
376
Distinct HCPCS
9
Medicare allowed
$42,051
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 158 112 $124
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 54 54 $128
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 32 32 $164
99213 Established patient office or other outpatient visit, 20-29 minutes 31 29 $89
G0008 Administration of influenza virus vaccine 29 29 $30
90662 Influenza vaccine split virus, preservative free 25 25 $72
G0009 Administration of pneumococcal vaccine 17 17 $30
36415 Insertion of needle into vein for collection of blood sample 15 15 $8
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 15 15 $281

In context: peer comparison

Among 10 peers in Arnold Family Medicine Physician, average services per provider: 55. This provider delivers 6.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$92
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 2 $29.00
Lilly USA, LLC 1 $22.59
Abbvie INC. 1 $21.38
AstraZeneca Pharmaceuticals Lp 1 $18.94

By nature of payment

Food and Beverage
$92

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,230
Patients
389
Total drug cost
$15,292
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 173 65 $2,089
Lisinopril Generic 110 36 $668
Levothyroxine Sodium Generic 94 27 $1,584
Amlodipine Besylate Generic 92 27 $695
Simvastatin Generic 83 22 $645
Metoprolol Succinate Generic 78 26 $2,194
Hydrochlorothiazide Generic 76 24 $301
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 73 22 $2,315
Meloxicam Generic 73 19 $287
Alprazolam Generic 72 25 $303

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Chitwood's medical specialty?
Dr. Mary Chitwood practices Family Medicine Physician in Arnold, MO.
Where does Dr. Mary Chitwood practice?
Dr. Mary Chitwood practices at 3619 Richardson Square Dr, Arnold, MO 63010. Office phone: 6367176776.
What is Dr. Mary Chitwood's NPI?
Dr. Mary Chitwood's National Provider Identifier (NPI) is 1376504621, issued by NPPES.
Does Dr. Mary Chitwood accept Medicare assignment?
Yes. Dr. Mary Chitwood accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Chitwood commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit (HCPCS G0438). Source: CMS Medicare Physician & Other Practitioners file.