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MRS. KATHERINE TREFZGER BAKER CFNP
NPI 1962520411
Nurse Practitioner - Family in Gainesville, VA

Active since March 26, 2007PECOS EnrolledAccepts Medicare Assignment
7915 LAKE MANASSAS DR STE 102, GAINESVILLE, VA 20155(703) 754-4101(703) 754-1105 Get Directions Write a Review

NPPES record last updated: September 28, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 28, 2022, Mar 11, 2020 (2 updates tracked since 2020).

About Mrs. Katherine Trefzger Baker Cfnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. KATHERINE TREFZGER BAKER CFNP (NPI 1962520411) is an individual family provider in Gainesville, Virginia, licensed in Virginia (0001114394) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, is affiliated with Uva Health Haymarket Medical Center, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1962520411
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. KATHERINE TREFZGER BAKERCredential: CFNP
Location Address7915 LAKE MANASSAS DR STE 102Gainesville, VA 20155-3259
Mailing Address7915 Lake Manassas Dr Ste 102Gainesville, VA 20155-3259 · (703) 754-4101 · Fax (703) 754-1105
Phone(703) 754-4101
Fax(703) 754-1105
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateMarch 26, 2007
Last NPPES UpdateSeptember 28, 20222 updates tracked since enumeration
NPPES CertifiedSeptember 28, 2022
✔ NPI 1962520411 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in VA · 0001114394
7915 LAKE MANASSAS DR STE 102, Gainesville, VA 20155
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mrs. Katherine Trefzger Baker Cfnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5294891669
PECOS Enrollment IDI20090310000306
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
88 services51 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
72 services51 patients
Urinalysis, manual test 81002
A urinalysis is a simple, non-invasive test that checks the urine for various elements such as sugar, protein, and signs of infection. It can help detect many common conditions, including kidney disease and diabetes. The manual test involves a lab technician examining a urine sample.
13 services11 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
12 services12 patients
Influenza vaccine split virus, preservative free 90662
The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.
11 services11 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Uva Health Haymarket Medical Center

Acute Care Hospitals · Haymarket, VA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number490144
Location15225 Healthcote BoulevardHaymarket, VA 20169 · Prince William County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20155 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$86.88 typical visit price
range $56.19 – $170.30
Typical copayment $21.72 (range $14.04 – $42.57)
Most-billed visit code 99203
Established Patient
$99.13 typical visit price
range $18.07 – $138.91
Typical copayment $24.78 (range $4.51 – $34.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. JASON VANVLIET HACKETT M.D.
Family Medicine
7915 LAKE MANASSAS DR STE 102
GAINESVILLE, VA 20155
Prince William County (703) 754-4101
DR. DOUGLAS SIGMON M.D.
Family Medicine
7915 LAKE MANASSAS DR STE 102
GAINESVILLE, VA 20155
Prince William County (703) 754-4101
DR. SUSAN TURKINGTON M.D.
Family Medicine
7915 LAKE MANASSAS DR STE 102
GAINESVILLE, VA 20155
Prince William County (703) 754-4101
GAINESVILLE FAMILY PRACTICE, P.C.
Family Medicine
7915 LAKE MANASSAS DR STE 102
GAINESVILLE, VA 20155
Prince William County (703) 754-4101

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Baker's NPI number?

The NPI number for Katherine Baker is 1962520411. It was assigned to this individual provider in the NPPES registry on March 26, 2007.

Where is Katherine Baker located?

Katherine Baker practices at 7915 Lake Manassas Dr Ste 102, Gainesville, VA 20155. The listed phone number is (703) 754-4101.

What is Katherine Baker's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Katherine Baker enrolled in Medicare?

Yes. Katherine Baker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Katherine Baker affiliated with any hospitals?

According to CMS data, Katherine Baker is affiliated with Uva Health Haymarket Medical Center.

When was this NPI record last updated?

The NPPES record for Katherine Baker was last updated on September 28, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.