Doctor profile · Federal record

Dr. Patricia Helferstay, PA-C

Physician Assistant · Annapolis, MD

  • NPI 1215477112
  • Accepts Medicare
  • MIPS 79.5 / 100 · 2023
  • 10 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2003 Medical Pkwy Ste 100
Annapolis, MD 214013076
(443) 481-3493
Additional location
900 S Caton Ave
Baltimore, MD 212295201
(667) 234-6000
Mailing address
654 Bay Green Dr
Arnold, MD 210122011

Credentials & registration

NPPES · NUCC
NPI registered
February 2017 — 9 yrs on file
Profile last updated
October 9, 2024
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Maryland #C0006398

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1215477112. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
23
Distinct HCPCS
1
Medicare allowed
$2,655
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 23 23 $115

In context: peer comparison

Among 26 peers in Annapolis Physician Assistant, average services per provider: 253. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,470
Transactions
16
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 7 $988.41
Pfizer INC. 2 $149.67
GlaxoSmithKline, LLC. 2 $115.51
Eisai INC. 1 $111.95
Merck Sharp & Dohme LLC 2 $52.30
Abbvie INC. 2 $51.74

By nature of payment

Travel and Lodging
$830
Food and Beverage
$640

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
44
Patients
43
Total drug cost
$108
Drug Type Claims Patients Total cost
Ondansetron Hcl Generic 26 25 $77
Tramadol Hcl Generic 18 18 $31

Frequently asked questions

Auto-generated from federal data
What is Dr. Patricia Helferstay's medical specialty?
Dr. Patricia Helferstay practices Physician Assistant in Annapolis, MD.
Where does Dr. Patricia Helferstay practice?
Dr. Patricia Helferstay practices at 2003 Medical Pkwy Ste 100, Annapolis, MD 214013076. Office phone: 4434813493.
What is Dr. Patricia Helferstay's NPI?
Dr. Patricia Helferstay's National Provider Identifier (NPI) is 1215477112, issued by NPPES.
Does Dr. Patricia Helferstay accept Medicare assignment?
Yes. Dr. Patricia Helferstay accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patricia Helferstay commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.