Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Allison Freeman , PHYSICIAN ASSISTANT

Physician Assistant โ€ข Frederick, MD

Active NPI 1750810875 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

501 W 7th St
Frederick, MD 21701

Call 3016988374 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

501 W 7th St

Frederick, MD 21701

Telephone 3016988374
Organization at the Same NPPES Address or Phone
Lee Oncology, Pa Facility NPI 1518014935

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

NPPES lists 1 additional practice-address record in Hagerstown, MD. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 2 distinct group names: Medical Practices Of Antietam, Llc; Meritus Medical Center 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

2017

Medicare patients

323 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 โ€“ by Provider, 2024.

Medicare-allowed amount

About $39,280 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 โ€“ by Provider and Service, 2024.

Paid by Medicare

About $27,779 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 โ€“ by Provider and Service, 2024.

30-day fills

8,065 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

$374,872 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 โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $189.48 across 9 records.

By nature of payment

  • Food and Beverage: $144.48 across 8 records.
  • Education: $45.00 across 1 record.

Reporting-company totals (3 largest of 6)

  • Eli Lilly and Company: $63.28 across 2 records.
  • Esperion Therapeutics, Inc.: $39.62 across 2 records.
  • Novo Nordisk Inc: $29.01 across 2 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

9 years (graduated 2017)

CMS Doctors and Clinicians data list 2017 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

2017

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, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

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)

Allison Freeman 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 Allison Freeman 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 Frederick and Maryland

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Close to the middle for clinicians listed under Physician Assistant in Frederick, MD (2024, 62 clinicians with data). Median for this group: 489. Middle half: 254 to 808.

More Medicare Part B services than 65% of clinicians listed under Physician Assistant in Maryland (2024, 1,555 clinicians with data). Median for this group: 282. Middle half: 86 to 792.

Medicare-allowed amount

Close to the middle for clinicians listed under Physician Assistant in Frederick, MD (2024, 62 clinicians with data). Median for this group: $37,587. Middle half: $18,664 to $85,255.

A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Maryland (2024, 1,555 clinicians with data). Median for this group: $23,780. Middle half: $8,384 to $55,296.

Paid by Medicare

Close to the middle for clinicians listed under Physician Assistant in Frederick, MD (2024, 62 clinicians with data). Median for this group: $27,503. Middle half: $14,341 to $64,827.

A higher Medicare payment amount than 60% of clinicians listed under Physician Assistant in Maryland (2024, 1,555 clinicians with data). Median for this group: $17,933. Middle half: $6,264 to $41,140.

Medicare Part D prescriptions

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Frederick, MD (2024, 57 clinicians with data). Median for this group: 229. Middle half: 88 to 868.

More Part D prescriptions than 95% of clinicians listed under Physician Assistant in Maryland (2024, 1,444 clinicians with data). Median for this group: 160. Middle half: 54 to 492.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Frederick, MD (2024, 57 clinicians with data). Median for this group: $6,528. Middle half: $943 to $62,400.

A higher Part D drug cost than 95% of clinicians listed under Physician Assistant in Maryland (2024, 1,444 clinicians with data). Median for this group: $2,321. Middle half: $444 to $33,452.

106 active clinicians are listed under Physician Assistant with a practice address in Frederick, MD (3,225 in Maryland).

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

Telehealth indicator in Frederick

23.6% of these 106 clinicians have the CMS telehealth indicator.

69.8% of these 106 clinicians are listed by CMS as accepting Medicare assignment.

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 ยท 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 ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $189.48.

Manufacturer Payment Nature Product Type Amount ($)
Eli Lilly and Company
Education
In-kind items and services
โ€” General $45.00
Esperion Therapeutics, Inc.
Food and Beverage
In-kind items and services
NEXLETOL General $21.24
Exact Sciences Corporation
Food and Beverage
In-kind items and services
Cologuard Collection Kit General $21.18
Merck Sharp & Dohme LLC
Food and Beverage
In-kind items and services
ROTATEQ General $19.99
Esperion Therapeutics, Inc.
Food and Beverage
In-kind items and services
NEXLETOL General $18.38
Eli Lilly and Company
Food and Beverage
In-kind items and services
MOUNJARO General $18.28
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)
Food and Beverage
In-kind items and services
CAPLYTA General $16.40
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Ozempic General $14.75
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Rybelsus General $14.26

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 ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“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 โ€“ by Provider and Service data, 2017โ€“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
308 208 $370.00 $83.56
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
63 60 $261.00 $68.86
96372 Injection of drug or substance under skin or into muscle
26 12 $73.00 $12.15
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
25 25 $332.00 $109.78
87428 Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza
21 21 $202.10 $63.76
81003 Automated urinalysis test
17 17 $8.00 $2.20
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
17 12 $365.00 $102.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
14 13 $321.00 $94.73
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
13 13 $516.00 $118.98
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
12 11 $60.00 $12.09

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 ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 278 16,744 $2,761.65 76
Amlodipine Besylate Amlodipine Besylate 166 11,619 $887.49 50
Omeprazole Omeprazole 161 9,647 $2,174.01 45
Lisinopril Lisinopril 146 9,443 $1,069.08 49
Rosuvastatin Calcium Rosuvastatin Calcium 144 9,152 $3,144.03 48
Levothyroxine Sodium Levothyroxine Sodium 143 9,534 $1,091.92 52
Famotidine Famotidine 136 5,355 $1,639.10 24
Montelukast Sodium Montelukast Sodium 122 6,340 $1,618.57 25
Pantoprazole Sodium Pantoprazole Sodium 114 7,166 $1,680.53 36
Gabapentin Gabapentin 96 5,289 $1,554.95 27
Metformin Hcl Metformin Hcl 89 5,864 $462.86 33
Simvastatin Simvastatin 87 5,717 $840.92 24
Trazodone Hcl Trazodone Hcl 84 4,009 $880.39 21
Sertraline Hcl Sertraline Hcl 83 5,318 $871.81 26
Losartan Potassium Losartan Potassium 79 5,191 $857.25 28
Ozempic Semaglutide 79 3,564 $117,748.47 18
Furosemide Furosemide 78 5,100 $266.65 26
Albuterol Sulfate Hfa Albuterol Sulfate 70 1,985 $2,203.37 28
Meloxicam Meloxicam 69 2,783 $624.02 18
Fluticasone Propionate Fluticasone Propionate 65 2,554 $881.61 15
Alprazolam Alprazolam 62 2,000 $353.41 24
Tramadol Hcl Tramadol Hcl 61 969 $333.98 25
Hydrochlorothiazide Hydrochlorothiazide 59 4,412 $164.49 26
Levetiracetam Levetiracetam 56 1,811 $1,966.87 โ€”
Metoprolol Succinate Metoprolol Succinate 55 4,362 $623.07 22

(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

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES MD C0006505

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.

Physician Assistant

NUCC 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.

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: Maryland Board of Physicians.
Look Up on State Board Site

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

I20171213000064

Enrollment State Jurisdiction

MD

PECOS Control ID

1759657653

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

Medical Practices Of Antietam, Llc

3 Byrkit Dr, Williamsport, MD 217951158

Phone: 3015821150

Medical Practices Of Antietam, Llc

11110 Medical Campus Rd, Hagerstown, MD 217426727

Medical Practices Of Antietam, Llc

13620 Crayton Blvd, Hagerstown, MD 217422335

Phone: 2403139890

Meritus Medical Center Inc

11110 Medical Campus Rd, Hagerstown, MD 217426700

Secondary Practice Locations

13620 Crayton Boulevard

Hagerstown, MD 21742

Phone: 2403139890

13620 Crayton Boulevard

Hagerstown, MD 21742

Phone: 2403139890

Clinicians Sharing This Practice Address or Phone

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

14 listed
Katherine Anderson , PA

Physician Assistant

NPI 1245294057

Physician Assistant

Lemuel Carlo De Leon , CRNP

Nurse Practitioner - Family

NPI 1619446622

Certified Registered Nurse Practitioner

NPI 1821096918

Doctor of Medicine (M.D.)

Roger Hoffman , PA-C

Physician Assistant

NPI 1770551913

Physician Assistant (Certified)

Sarah Hooper , CRNP

Nurse Practitioner - Adult Health

NPI 1144213893

Certified Registered Nurse Practitioner

Nicole Mullendore , FNP-BC

Nurse Practitioner - Family

NPI 1437409489

Family Nurse Practitioner (Board Certified)

Career & Practice History Timeline

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

14 Historical Events
๐Ÿ“
Updated Practice Location June 25, 2019

Registered at 501 W 7TH ST, FREDERICK, MD 21701 (Tel: 3016988374)

๐Ÿ“
Updated Business Mailing Address June 25, 2019

Registered at PO BOX 37086, BALTIMORE, MD 212973086 (Tel: 2404398913)

๐Ÿ“
Updated Practice Location November 27, 2018

Registered at 13620 CRAYTON BOULEVARD, HAGERSTOWN, MD 21742 (Tel: 2403139890)

โœ…
NPI Profile Active November 22, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location November 22, 2017

Registered at 13424 PENNSYLVANIA AVE STE 205, HAGERSTOWN, MD 217422686 (Tel: 2403139890)

๐Ÿ“
Updated Business Mailing Address November 22, 2017

Registered at 15122 BROADFORDING RD, CLEAR SPRING, MD 217221502

๐Ÿ‘ค
Provider Name / Credentials Updated November 22, 2017

Recorded as ALLISON FREEMAN, PHYSICIAN ASSISTANT

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 22, 2017

Physician Assistant

โœ…
NPI Profile Active June 12, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) June 12, 2017

Registered at 13424 PENNSYLVANIA AVE STE 205, HAGERSTOWN, MD 217422686 (Tel: 2403139890)

๐Ÿ“
Business Mailing Address (Initial Record) June 12, 2017

Registered at 15122 BROADFORDING RD, CLEAR SPRING, MD 217221502

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) June 12, 2017

Recorded as ALLISON FREEMAN, PHYSICIAN ASSISTANT

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) June 12, 2017

Physician Assistant

๐ŸŸข
Initial NPI Registration & Enumeration June 12, 2017

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1750810875
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: June 12, 2017
Last Update: June 25, 2019
Sole Proprietor: No

Other Physician Assistants in Frederick

All Physician Assistants in Frederick

Mailing Address

Po Box 37086

Baltimore, MD 212973086

Phone: 2404398913

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.