Doctor profile · Federal record

Dr. MARY JOHNSTEN, PA-C

Medical Physician Assistant (CMS: PHYSICIAN ASSISTANT) · FAIRHOPE, AL

  • NPI 1700801370
  • Accepts Medicare
  • 22 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 13 locations across 1 states.

NPPES Updated May 11, 2026
Primary practice
411 N SECTION ST
FAIRHOPE, AL 36532
(251) 660-3470
fax (251) 660-3471
Mailing address
407 KUMQUAT ST
FAIRHOPE, AL 365321246
Alabama — 12 locations
Additional location
18 CM Rambo Dr
Saraland, AL 365712147
(251) 675-7433
fax (251) 675-3470
Additional location
19140 S 3rd St
Citronelle, AL 365222306
(251) 866-0086
fax (251) 866-0089
Additional location
407 Kumquat St
Fairhope, AL 365321246
(251) 581-2445
Additional location
5100 Rangeline Service Rd N
Mobile, AL 366199504
(251) 661-4454
fax (251) 661-9843
Additional location
5621 Cottage Hill Rd
Mobile, AL 366094210
(251) 666-2439
fax (251) 666-3166
Additional location
610 Providence Park Dr E Ste 101
Mobile, AL 366954618
(251) 378-3900
fax (251) 378-3902
Additional location
610 Providence Park Dr E Ste 102
Mobile, AL 366954618
(251) 639-5070
fax (251) 634-2994
Additional location
6701 Airport Blvd Ste A206
Mobile, AL 366083763
(251) 675-7433
fax (251) 675-3470
Additional location
6908 Providence Park Dr S
Mobile, AL 366954600
(251) 660-3490
fax (251) 660-3491
Additional location
8010 Moffett Rd
Semmes, AL 365755406
(251) 645-8946
fax (251) 645-8976
Additional location
8833 Cottage Hill Rd
Mobile, AL 366958345
(251) 544-5420
fax (251) 544-5425
Additional location
9971 Airport Blvd
Mobile, AL 366089525
(251) 660-3500
fax (251) 660-3501

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
June 3, 2019
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
363AM0700X — NUCC code
State license (1)
Alabama #PA-393
Medicaid
FL #008087700

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1700801370. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,048
Distinct HCPCS
10
Medicare allowed
$98,444
HCPCS Description Services Patients Avg allowed
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes 709 119 $107
99497 Advance care planning, first 30 minutes 64 64 $66
G0442 Annual alcohol misuse screening, 5 to 15 minutes 60 60 $15
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 56 35 $79
G0008 Administration of influenza virus vaccine 33 33 $25
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free 32 32 $33
99345 Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes 32 32 $170
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit 29 29 $133
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 20 20 $98
G0444 Annual depression screening, 5 to 15 minutes 13 13 $15

In context: peer comparison

Among 5 peers in this city , average services per provider: 153. This provider delivers 6.8× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
916
Patients
179
Total drug cost
$67,333
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 94 22 $1,208
Gabapentin Generic 89 19 $2,016
Eliquis (Apixaban) Brand 75 13 $54,701
Levothyroxine Sodium Generic 75 12 $1,684
Losartan Potassium Generic 73 14 $1,145
Pantoprazole Sodium Generic 68 14 $1,104
Amlodipine Besylate Generic 66 19 $557
Potassium Chloride Generic 60 18 $1,271
Furosemide Generic 58 15 $356
Buspirone Hcl Generic 52 0 $838