Christopher Hallock , PA-C
Physician Assistant • Marietta, GA
4994 Lower Roswell Rd Ste 5
Marietta, GA 300684332
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Christopher Hallock is listed in NPPES under Physician Assistant.
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NPI assigned on March 3, 2021; this date does not establish years in practice.
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Published CMS data list 56 Medicare Part D prescriptions, including refills, in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Published rows only; this is not a quality measure.
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Published Part D records, 2023:
- Risperidone — 21 prescription fills, including refills.
- Fluoxetine Hcl — 12 prescription fills, including refills.
- Benztropine Mesylate — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part D prescriptions went from 45 in 2022 to 56 in 2023.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022–2023.
Practice Location & Contact Primary Location
4994 Lower Roswell Rd Ste 5
Marietta, GA 300684332
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Atlanta, GA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
57 standardized 30-day fills in 2023
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
$23,954 in 2023
The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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, 2023.
Open Payments general payments, program year 2025
All general payments: $1,141.99 across 58 records.
By nature of payment
- Food and Beverage: $1,141.99 across 58 records.
Reporting-company totals (3 largest of 18)
- Supernus Pharmaceuticals, Inc.: $239.15 across 12 records.
- Corium, LLC: $98.46 across 6 records.
- ABBVIE INC.: $94.91 across 5 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.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2021
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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?”
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.
Compared with the same specialty in Marietta and Georgia
Billing and prescribing volume is not a quality rating.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Christopher Hallock are from 2023.
209 active clinicians are listed under Physician Assistant with a practice address in Marietta, GA (4,665 in Georgia).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Marietta
16.7% of these 209 clinicians have the CMS telehealth indicator.
71.3% of these 209 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 24% from 45 in 2022 to 56 in 2023.
- 2022: 45
- 2023: 56
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30-day fills
30-day fills increased 21% from 47 in 2022 to 57 in 2023.
- 2022: 47
- 2023: 57
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Part D drug cost
Part D drug cost decreased 50% from $47,680 in 2022 to $23,954 in 2023.
- 2022: $47,680
- 2023: $23,954
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $290.67 in 2021 to $1,141.99 in 2025.
- 2021: $290.67
- 2022: $453.49
- 2023: $1,126.98
- 2024: $1,611.41
- 2025: $1,141.99
Sources: CMS Medicare Part D Prescribers (2023), 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
Program year 2025 (payments made January 1 – December 31, 2025): 58 records totaling $1,141.99.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
|
REXULTI | General | $34.05 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $33.58 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
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COBENFY | General | $29.81 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
|
REXULTI | General | $26.74 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
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VRAYLAR | General | $25.64 |
| Lundbeck LLC |
Food and Beverage
Cash or cash equivalent
|
REXULTI | General | $25.18 |
| Neurocrine BioSciences, Inc. |
Food and Beverage
In-kind items and services
|
INGREZZA | General | $25.14 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $24.95 |
| Alkermes, Inc. |
Food and Beverage
In-kind items and services
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ARISTADA | General | $24.87 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $24.78 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $24.64 |
| Otsuka America Pharmaceutical, Inc. |
Food and Beverage
In-kind items and services
|
REXULTI | General | $24.55 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $24.52 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $24.00 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $23.84 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $22.67 |
| Tris Pharma Inc |
Food and Beverage
In-kind items and services
|
Dyanavel XR | General | $22.31 |
| Takeda Pharmaceuticals U.S.A., Inc. |
Food and Beverage
In-kind items and services
|
TRINTELLIX | General | $22.07 |
| ABBVIE INC. |
Food and Beverage
In-kind items and services
|
VRAYLAR | General | $21.82 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
COBENFY | General | $21.57 |
| Noven Therapeutics, LLC |
Food and Beverage
In-kind items and services
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Xelstrym | General | $21.53 |
| Supernus Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
Qelbree | General | $21.10 |
| Vanda Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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FANAPT | General | $21.08 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
SPRAVATO | General | $20.98 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $20.85 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2023.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Risperidone | Risperidone | 21 | 645 | $276.42 | — |
| Fluoxetine Hcl | Fluoxetine Hcl | 12 | 363 | $233.67 | — |
| Benztropine Mesylate | Benztropine Mesylate | 12 | 363 | $138.83 | — |
| Oxtellar Xr | Oxcarbazepine | 11 | 325 | $23,304.64 | — |
Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-08-28NUCC Taxonomy Code: 363A00000X
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.
Secondary Practice Locations
2150 Peachford Rd Ste Q
Atlanta, GA 303386539
Phone: 6786157032
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Psychiatry & Neurology - Child & Adolescent Psychiatry
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 2150 PEACHFORD RD STE Q, ATLANTA, GA 303386539 (Tel: 6786157032)
NPI status registered as active in NPPES database
Registered at 4994 LOWER ROSWELL RD STE 5, MARIETTA, GA 300684332 (Tel: 6786157032)
Registered at 52 SWEETWATER BRIDGE CIR, DOUGLASVILLE, GA 301345503 (Tel: 6199721579)
Recorded as CHRISTOPHER HALLOCK, PA-C
Physician Assistant (license number reported to NPPES: GA 10216)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Physician Assistants in Marietta
- Serena Frye, PA-C
- Tyler Wooten, PA-C
- Shaina Hazen, PA-C
- Jennifer Lambert, PA-C
- Joel Kazinec, PA-C, MMSC
- Windy Bernard, PA-C
Mailing Address
2150 Peachford Rd Ste Q
Atlanta, GA 303386539
Phone: 6786157032