Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Christopher Charles Gregorich , PA-C

Physician Assistant • Hummelstown, PA

Active NPI 1730284829 Individual Practitioner Male Practitioner Accepts Medicare assignment
Practice location in NPPES

300 E Main St
Hummelstown, PA 170361725

Call 7175661100 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

300 E Main St

Hummelstown, PA 170361725

Telephone 7175661100
Fax 7175660600
Organization at the Same NPPES Address or Phone
Todd R. Fisher Md, Pc Facility NPI 1295792083

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Family Practice Center Pc; Phoenix Rehabilitation And Health Services Inc. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2006

Medicare patients

135 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $33,208 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $26,201 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

10,314 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$328,831 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $498.00 across 27 records.

By nature of payment

  • Food and Beverage: $498.00 across 27 records.

Reporting-company totals (3 largest of 12)

  • AstraZeneca Pharmaceuticals LP: $155.60 across 10 records.
  • Novo Nordisk Inc: $84.54 across 4 records.
  • Eli Lilly and Company: $66.60 across 3 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

20 years (graduated 2006)

CMS Doctors and Clinicians data list 2006 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Christopher Gregorich has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Christopher Gregorich as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Hummelstown and Pennsylvania

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 80% of clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: 174. Middle half: 68 to 404.

Too few clinicians listed under Physician Assistant in Hummelstown have Medicare Part B data for 2024 to compare.

Medicare-allowed amount

A higher Medicare-allowed amount than 75% of clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: $13,809. Middle half: $5,386 to $28,936.

Too few clinicians listed under Physician Assistant in Hummelstown have Medicare Part B data for 2024 to compare.

Paid by Medicare

A higher Medicare payment amount than 80% of clinicians listed under Physician Assistant in Pennsylvania (2024, 3,979 clinicians with data). Median for this group: $10,019. Middle half: $3,950 to $20,945.

Too few clinicians listed under Physician Assistant in Hummelstown have Medicare Part B data for 2024 to compare.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Pennsylvania (2024, 4,373 clinicians with data). Median for this group: 235. Middle half: 69 to 862.

Too few clinicians listed under Physician Assistant in Hummelstown have Medicare Part D data for 2024 to compare.

Part D drug cost

A higher Part D drug cost than 85% of clinicians listed under Physician Assistant in Pennsylvania (2024, 4,373 clinicians with data). Median for this group: $3,681. Middle half: $519 to $94,109.

Too few clinicians listed under Physician Assistant in Hummelstown have Medicare Part D data for 2024 to compare.

9 active clinicians are listed under Physician Assistant with a practice address in Hummelstown, PA (8,021 in Pennsylvania).

Addresses are self-reported to NPPES and may be out of date.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 27 records totaling $498.00.

Manufacturer Payment Nature Product Type Amount ($)
Eisai Inc.
Food and Beverage
In-kind items and services
Leqembi General $29.25
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $26.12
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $24.64
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $22.32
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $22.02
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $21.53
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $21.33
Exact Sciences Corporation
Food and Beverage
In-kind items and services
Cologuard Collection Kit General $21.08
Eli Lilly and Company
Food and Beverage
In-kind items and services
JARDIANCE General $20.63
Bayer Healthcare Pharmaceuticals Inc.
Food and Beverage
In-kind items and services
Kerendia General $19.69
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $18.75
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $18.67
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $17.55
Bristol Myers Squibb Company
Food and Beverage
Cash or cash equivalent
CAMZYOS General $17.37
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $16.96
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $16.96
CeQur Corporation
Food and Beverage
Cash or cash equivalent
CeQur Simplicity General $16.47
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $16.46
Pfizer Inc.
Food and Beverage
In-kind items and services
PREVNAR 20 General $16.26
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $16.23
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $16.17
Boehringer Ingelheim Pharmaceuticals, Inc.
Food and Beverage
In-kind items and services
JARDIANCE General $15.51
Baxter Healthcare
Food and Beverage
In-kind items and services
Hillrom - Cardiac Ambulatory Monitor General $15.50
AstraZeneca Pharmaceuticals LP
Food and Beverage
In-kind items and services
AIRSUPRA General $15.38
ABBVIE INC.
Food and Beverage
In-kind items and services
UBRELVY General $14.01

(top 25 shown)

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
126 90 $145.00 $101.10
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
75 68 $98.00 $72.32
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
66 66 $180.00 $103.99
36415 Insertion of needle into vein for collection of blood sample
65 50 $10.00 $8.65
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
61 49 $20.00 $13.31
G0446 Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes
56 56 $35.00 $20.36
G0008 Administration of influenza virus vaccine
18 18 $33.00 $30.77
90662 Influenza vaccine split virus, preservative free
16 16 $84.38 $81.39
G0447 Face-to-face behavioral counseling for obesity, 15 minutes
14 14 $35.00 $20.32
G0009 Administration of pneumococcal vaccine
12 12 $33.00 $30.77
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
11 11 $375.00 $287.07

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 417 34,483 $4,541.07 109
Rosuvastatin Calcium Rosuvastatin Calcium 232 18,825 $2,799.83 61
Levothyroxine Sodium Levothyroxine Sodium 200 12,642 $1,244.98 40
Amlodipine Besylate Amlodipine Besylate 176 13,323 $904.86 44
Pantoprazole Sodium Pantoprazole Sodium 164 11,620 $1,788.72 42
Omeprazole Omeprazole 151 10,119 $1,171.88 37
Losartan Potassium Losartan Potassium 143 10,850 $1,117.58 39
Lisinopril Lisinopril 136 11,100 $597.39 40
Metoprolol Succinate Metoprolol Succinate 132 9,150 $2,188.14 37
Metformin Hcl Er Metformin Hcl 126 10,200 $2,039.13 35
Zolpidem Tartrate Zolpidem Tartrate 99 3,245 $431.04 16
Gabapentin Gabapentin 90 5,970 $1,501.19 27
Simvastatin Simvastatin 88 7,140 $924.43 23
Sertraline Hcl Sertraline Hcl 82 5,856 $581.49 22
Montelukast Sodium Montelukast Sodium 82 5,220 $837.88 27
Meloxicam Meloxicam 81 5,370 $79.84 20
Tamsulosin Hcl Tamsulosin Hcl 81 5,430 $1,298.70 19
Hydrochlorothiazide Hydrochlorothiazide 80 5,940 $217.37 22
Trazodone Hcl Trazodone Hcl 76 4,663 $597.13 18
Lorazepam Lorazepam 71 1,958 $130.77 27
Alprazolam Alprazolam 64 1,720 $312.18 —
Furosemide Furosemide 61 3,640 $209.90 15
Tramadol Hcl Tramadol Hcl 60 1,581 $292.93 22
Ozempic Semaglutide 60 2,212 $69,066.23 11
Duloxetine Hcl Duloxetine Hcl 58 3,900 $687.58 12

(top 25 shown)

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2024-12-17
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES PA MA052685

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.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Pennsylvania Department of State Licensing.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
1035691060001 (PA)
Other Identifier Medicare
7C4400 (PA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20061023000015

Enrollment State Jurisdiction

PA

PECOS Control ID

8123025830

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Family Practice Center Pc

1 Dock Hill Rd, Middleburg, PA 178428910

Phone: 5708375889

Phoenix Rehabilitation And Health Services Inc

2000 Westinghouse Dr, Cranberry Twp, PA 160665238

Family Practice Center Pc

300 E Main St, Hummelstown, PA 170361725

Phone: 7175661100

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

5 listed
Amy Casale , PA-C

Physician Assistant

NPI 1134604911

Physician Assistant (Certified)

Dr. Todd Fisher , MD

Family Medicine

NPI 1336104504

Doctor of Medicine (M.D.)

Mary Karis , CRNP

Nurse Practitioner

NPI 1790448355

Certified Registered Nurse Practitioner

Sean Rhoads , PA-C

Family Medicine

NPI 1548227499

Physician Assistant (Certified)

NPI 1902435373

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
📍
Updated Business Mailing Address November 20, 2024

Registered at 7 DOCK HILL RD, MIDDLEBURG, PA 178428910 (Tel: 5708372123)

👤
Provider Name / Credentials Updated November 20, 2024

Recorded as CHRISTOPHER GREGORICH, PA-C

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 20, 2024

Physician Assistant (license number reported to NPPES: PA MA052685)

âś…
NPI Profile Active July 15, 2012

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) July 15, 2012

Registered at 300 E MAIN ST, HUMMELSTOWN, PA 170361725 (Tel: 7175661100)

📍
Business Mailing Address (Initial Record) July 15, 2012

Registered at 300 E MAIN ST, HUMMELSTOWN, PA 170361725 (Tel: 7175661100)

👤
Provider Name / Credentials (Initial Record) July 15, 2012

Recorded as CHRISTOPHER GREGORICH, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 15, 2012

Physician Assistant (license number reported to NPPES: PA MA 052685)

🟢
Initial NPI Registration & Enumeration September 13, 2006

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1730284829
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 13, 2006
Last Update: December 17, 2024
Sole Proprietor: Yes

Other Physician Assistants in Hummelstown

Mailing Address

7 Dock Hill Rd

Middleburg, PA 178428910

Phone: 5708372123

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.