Doctor profile · Federal record

Dr. Catelyn Knowlton, FNP-C

Family Nurse Practitioner (CMS: Nurse Practitioner) · La Marque, TX

  • NPI 1154831956
  • Accepts Medicare
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2600 Fm 1764 RD Ste 190
La Marque, TX 775682826
(281) 886-8964
fax (409) 440-8071
Additional location
500 W Medical Center Blvd
Webster, TX 775984220
(281) 332-2511

Credentials & registration

NPPES · NUCC
NPI registered
October 2017 — 9 yrs on file
Profile last updated
April 7, 2021
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Texas #AP135331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154831956. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
609
Distinct HCPCS
10
Medicare allowed
$22,604
HCPCS Description Services Patients Avg allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg 230 22 $0
99213 Established patient office or other outpatient visit, 20-29 minutes 65 56 $76
87804 Detection test by immunoassay with direct visual observation for influenza virus 58 27 $16
99214 Established patient office or other outpatient visit, 30-39 minutes 50 46 $108
87426 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus 36 33 $35
99203 New patient office or other outpatient visit, 30-44 minutes 32 32 $94
96372 Injection of drug or substance under skin or into muscle 31 28 $12
81003 Automated urinalysis test 27 22 $2
87636 Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b 21 20 $140
87880 Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 21 21 $16

In context: peer comparison

Among 2 peers in this city , average services per provider: 43. This provider delivers 14× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
255
Patients
243
Total drug cost
$3,443
Drug Type Claims Patients Total cost
Prednisone Generic 44 41 $75
Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) Brand 38 34 $630
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 32 30 $299
Doxycycline Hyclate Generic 32 31 $379
Paxlovid (Eua) (Nirmatrelvir/Ritonavir) Brand 22 22 $238
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 20 19 $486
Azithromycin Generic 20 20 $115
Methylprednisolone Generic 17 17 $139
Cefpodoxime Proxetil Generic 15 14 $963
Cephalexin Generic 15 15 $118

Frequently asked questions

Auto-generated from federal data
What is Dr. Catelyn Knowlton's medical specialty?
Dr. Catelyn Knowlton practices Family Nurse Practitioner in La Marque, TX.
Where does Dr. Catelyn Knowlton practice?
Dr. Catelyn Knowlton practices at 2600 Fm 1764 RD Ste 190, La Marque, TX 775682826. Office phone: 2818868964.
What is Dr. Catelyn Knowlton's NPI?
Dr. Catelyn Knowlton's National Provider Identifier (NPI) is 1154831956, issued by NPPES.
Does Dr. Catelyn Knowlton accept Medicare assignment?
Yes. Dr. Catelyn Knowlton accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catelyn Knowlton commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Established patient office or other outpatient visit (HCPCS 99213); Detection test by immunoassay with direct visual observation for influenza virus (HCPCS 87804). Source: CMS Medicare Physician & Other Practitioners file.