Doctor profile · Federal record
Dr. Alan Chapman, MD
Infectious Disease Physician (CMS: Infectious Disease) · Houston, TX
- NPI 1245239177
- Accepts Medicare
- 47 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
9055 Katy Fwy, Suite 400
Houston, TX 770241630
(713) 467-1365
fax (713) 467-6580
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- February 18, 2010
- Year of graduation
- 1979 — 47 yrs since
- Specialty taxonomy
- 207RI0200X — NUCC code
- State license (1)
- Texas #F3830
- Medicaid
- TX #097991602
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1245239177. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,774
Distinct HCPCS
5
Medicare allowed
$164,784
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 1,336 | 174 | $80 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 192 | 62 | $121 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 169 | 167 | $176 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 65 | 29 | $51 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 12 | 12 | $123 |
In context: peer comparison
Among 56 peers in this city , average services per provider: 191. This provider delivers 9.3× the peer median.Open Payments
Industry payments received
All-time total
$50
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 1 | $25.33 | |
| Novo Nordisk Inc | 1 | $25.08 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,575
Patients
507
Total drug cost
$1,413,566
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Daptomycin | Generic | 393 | 57 | $743,198 |
| Ertapenem (Ertapenem Sodium) | Brand | 384 | 76 | $230,563 |
| Cefdinir | Generic | 184 | 129 | $9,050 |
| Meropenem | Generic | 107 | 15 | $19,502 |
| Doxycycline Hyclate | Generic | 102 | 63 | $3,468 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 99 | 74 | $1,527 |
| Biktarvy (Bictegrav/Emtricit/Tenofov Ala) | Brand | 73 | 0 | $303,234 |
| Cefepime Hcl | Generic | 53 | 11 | $10,274 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 39 | 23 | $1,342 |
| Ciprofloxacin Hcl | Generic | 33 | 22 | $1,218 |
Hospital affiliations
Frequently asked questions
What is Dr. Alan Chapman's medical specialty?
Dr. Alan Chapman practices Infectious Disease Physician in Houston, TX.
Where does Dr. Alan Chapman practice?
Dr. Alan Chapman practices at 9055 Katy Fwy, Houston, TX 770241630. Office phone: 7134671365.
What is Dr. Alan Chapman's NPI?
Dr. Alan Chapman's National Provider Identifier (NPI) is 1245239177, issued by NPPES.
Does Dr. Alan Chapman accept Medicare assignment?
Yes. Dr. Alan Chapman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alan Chapman commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.