Doctor profile · Federal record
Dr. Margaret Reiker
Internal Medicine Physician (CMS: Internal Medicine) · Saint Louis, MO
- NPI 1902915853
- Accepts Medicare
- 33 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3009 N Ballas RD, Suite 387C
Saint Louis, MO 631312322
(314) 996-5900
fax (314) 996-5910 - Mailing address
-
670 Mason Ridge Center Dr, Suite 300
Saint Louis, MO 631418573
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 19, 2013
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Missouri #103304
- Medicaid
- MO #205230402
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1902915853. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,170
Distinct HCPCS
10
Medicare allowed
$142,678
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 571 | 362 | $126 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 312 | 312 | $128 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 63 | 62 | $89 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 48 | 37 | $177 | |
90662 |
Influenza vaccine split virus, preservative free | 45 | 43 | $72 | |
G0008 |
Administration of influenza virus vaccine | 45 | 43 | $30 | |
90677 |
Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | 24 | 24 | $281 | |
G0009 |
Administration of pneumococcal vaccine | 24 | 24 | $30 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 14 | 14 | $165 | |
G0402 |
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment | 13 | 13 | $164 |
In context: peer comparison
Among 216 peers in Saint Louis Internal Medicine Physician, average services per provider: 171. This provider delivers 6.8× the peer median.Open Payments
Industry payments received
All-time total
$1,297
Transactions
76
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 19 | $266.44 | |
| Pfizer INC. | 13 | $155.37 | |
| Novartis Pharmaceuticals Corporation | 6 | $129.15 | |
| Novo Nordisk INC | 6 | $111.88 | |
| Lilly USA, LLC | 5 | $98.70 | |
| Amgen INC. | 5 | $91.25 | |
| Abbott Laboratories | 3 | $60.12 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 3 | $51.84 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $49.21 | |
| Biogen, INC. | 3 | $48.51 | |
| Phathom Pharmaceuticals, INC. | 2 | $47.31 | |
| Teva Pharmaceuticals USA, INC. | 2 | $37.29 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $35.46 | |
| Noven Therapeutics, LLC | 2 | $33.81 | |
| GlaxoSmithKline, LLC. | 2 | $31.93 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,804
Patients
1,370
Total drug cost
$53,525
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 674 | 204 | $5,696 |
| Levothyroxine Sodium | Generic | 537 | 140 | $9,056 |
| Amlodipine Besylate | Generic | 477 | 136 | $3,559 |
| Losartan Potassium | Generic | 416 | 116 | $5,214 |
| Rosuvastatin Calcium | Generic | 388 | 115 | $3,835 |
| Alprazolam | Generic | 322 | 80 | $1,381 |
| Metoprolol Succinate | Generic | 312 | 93 | $5,427 |
| Gabapentin | Generic | 303 | 88 | $5,636 |
| Lisinopril | Generic | 269 | 82 | $1,853 |
| Tramadol Hcl | Generic | 215 | 47 | $1,640 |
Hospital affiliations
Frequently asked questions
What is Dr. Margaret Reiker's medical specialty?
Dr. Margaret Reiker practices Internal Medicine Physician in Saint Louis, MO.
Where does Dr. Margaret Reiker practice?
Dr. Margaret Reiker practices at 3009 N Ballas RD, Saint Louis, MO 631312322. Office phone: 3149965900.
What is Dr. Margaret Reiker's NPI?
Dr. Margaret Reiker's National Provider Identifier (NPI) is 1902915853, issued by NPPES.
Does Dr. Margaret Reiker accept Medicare assignment?
Yes. Dr. Margaret Reiker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Reiker 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); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.