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Active NPI 1255323135 Individual Practitioner Male Practitioner

Gregory Jason Christie , PA-C

Physician Assistant • Andover, MA

Professional Overview & Biography Verified Profile Summary

Gregory Christie, PA-C is a registered healthcare professional specializing in Physician Assistant in Andover, MA. Practice services are available at 140 HAVERHILL ST under active NPI credentials.

Frequently performed procedures and clinical services include residence visit for established patient with low level of medical decision making, per day, if using time, at least, detection test by immunoassay with direct visual observation for influenza virus, residence visit for new patient with low level of medical decision making, per day, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

140 Haverhill St
Suite 1

Andover, MA 018101504

Telephone 9784700707
Fax 9784708973
Associated Practice Facility / Clinic
🏢 Essex Orthopaedics Inc. Facility NPI 1750373635

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Andover, MA

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 9.4 Yrs
State Avg: 10.0 Yrs
Regional Practice Density
12 Specialists

Practicing in Andover, MA (4746 Statewide)

Telehealth Adoption Rate
16.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
81.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
52 48 $423.08 $68.22
87804 Detection test by immunoassay with direct visual observation for influenza virus
42 21 $33.00 $16.22
99342 Residence visit for new patient with low level of medical decision making, per day, if using time, at least 30 minutes
39 39 $423.08 $69.25
81002 Urinalysis, manual test
34 32 $7.00 $3.41
87811 Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19)
26 26 $82.76 $40.55
99341 New patient home visit, typically 20 minutes
23 23 $375.00 $43.78
99347 Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes
20 20 $375.00 $40.26
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
12 12 $427.08 $112.94

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MA 305

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

13 Associated Practitioners
NPI 1215134390

Doctor of Medicine (M.D.)

NPI 1215953039

Doctor of Medicine (M.D.)

Dr. Andrea Polonsky , MD

Obstetrics & Gynecology

NPI 1245316389

Doctor of Medicine (M.D.)

NPI 1336147214

Doctor of Medicine (M.D.)

Christine Lotterhand , NP

Nurse Practitioner - Family

NPI 1437211059

Nurse Practitioner

Grace Clancy , PNP

Nurse Practitioner - Pediatrics

NPI 1447383054

Pediatric Nurse Practitioner

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 140 HAVERHILL ST, SUITE 1, ANDOVER, MA 018101504 (Tel: 9784700707)

📍
Updated Business Mailing Address July 08, 2007

Registered at 140 HAVERHILL ST, SUITE 1, ANDOVER, MA 018101504 (Tel: 9784700707)

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as GREGORY CHRISTIE, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Physician Assistant (License #305 in MA)

🟢
Initial NPI Registration & Enumeration August 17, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1255323135
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 17, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

140 Haverhill St, Suite 1

Andover, MA 018101504

Phone: 9784700707

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.