Florencia Z Erwin , PA-C
Physician Assistant โข Frederick, MD
850 Oak St
Frederick, MD 217038442
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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Florencia Erwin is listed in NPPES under Physician Assistant.
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NPI assigned on October 26, 2011; this date does not establish years in practice.
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Published CMS data list 40 Original Medicare Part B services in 2019.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019. Published rows only; this is not a quality measure.
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Published Part B service records, 2019:
- 99202 โ New patient outpatient office visit: 27 service units.
- 81003 โ Automated urinalysis test: 13 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2019. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2018 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2019). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 11 Medicare Part D prescriptions, including refills, in 2019.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Published rows only; this is not a quality measure.
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Published Part D records, 2019:
- Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) โ 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2019. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 25 in 2017 to 40 in 2019.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2017โ2019.
Practice Location & Contact Primary Location
850 Oak St
Frederick, MD 217038442
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 Issaquah, WA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Peacehealth Networks On Demand Llc. 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
2011
What Public CMS Data Show
Physician Assistant: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $1,956 in 2019
The total amount Medicare approved for these services in 2019. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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, 2019.
Paid by Medicare
About $1,209 in 2019
The part of the Medicare-allowed amount that Medicare itself paid in 2019, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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, 2019.
30-day fills
11 standardized 30-day fills in 2019
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
$101 in 2019
The total cost of these prescriptions in 2019, 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 โ by Provider and Drug, 2019.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
Years since graduation
15 years (graduated 2011)
CMS Doctors and Clinicians data list 2011 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished 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
2011
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.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
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.
Enrolled in Medicare (PECOS)
Florencia Erwin 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.
Can order Medicare-covered services
CMS lists Florencia Erwin 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.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
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.
Compared with the same specialty in Frederick and Maryland
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Florencia Erwin are from 2019.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Florencia Erwin are from 2019.
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.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 60% from 25 in 2017 to 40 in 2019.
- 2017: 25
- 2018: 22
- 2019: 40
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Medicare-allowed amount
Medicare-allowed amount increased 16% from $1,692 in 2017 to $1,956 in 2019.
- 2017: $1,692
- 2018: $1,529
- 2019: $1,956
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Paid by Medicare
Paid by Medicare increased 15% from $1,047 in 2017 to $1,209 in 2019.
- 2017: $1,047
- 2018: $977
- 2019: $1,209
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 12 in 2013 to 11 in 2019.
- 2013: 12
- 2015: 752
- 2016: 281
- 2019: 11
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30-day fills
30-day fills went from 12 in 2013 to 11 in 2019.
- 2013: 12
- 2015: 1,275
- 2016: 576
- 2019: 11
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Part D drug cost
Part D drug cost went from $108 in 2013 to $101 in 2019.
- 2013: $108
- 2015: $21,831
- 2016: $2,973
- 2019: $101
Sources: CMS Medicare Physician & Other Practitioners (2019), CMS Medicare Part D Prescribers (2019), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2018 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, 2017โ2019; 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 |
|---|---|---|---|---|
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99202
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more
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27 | 27 | $149.00 | $71.35 |
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81003
Automated urinalysis test
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13 | 12 | $9.00 | $2.29 |
Source: CMS Part B by Provider and Service, 2019; 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 2019.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin-Clavulanate Potass | Amoxicillin/Potassium Clav | 11 | 84 | $100.59 | โ |
Source: CMS Part D by Provider and Drug, 2019; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-05-18NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - PHYSICIAN ASSISTANT
I20121012000413
WA
0446425243
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
Peacehealth Networks On Demand Llc
10541 Ne 4th St, Bellevue, WA 980045023
Phone: 8646643984
Peacehealth Networks On Demand Llc
2010 148th Ave Ne, Redmond, WA 980525151
Phone: 8646643984
Secondary Practice Locations
751 Ne Blakely Dr Ste 2030
Issaquah, WA 980296201
Phone: 4253134141
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Emergency Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Acute Care
Nurse Practitioner - Acute Care
Master of Science, Adult-Gerontology Acute Care Nurse Practitioner (Board Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Nurse Practitioner
Family Nurse Practitioner (Board Certified)
Occupational Therapist
Occupational Therapist
Career & Practice History
NPI enumerated October 26, 2011.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Physician Assistants in Frederick
- Jinhui Yuan
- Jillian Schmitz, PA
- Matthew Correnti
- Alissa Parmelee, PA-C
- Samantha Koontz, PA-C
- Taylor Rose, PA-C
Mailing Address
20120 Ballinger Way Ne Suite B
Shoreline, WA 98155
Phone: 2068585059