STEFANIE HOLTZER NP
NPI 1730895046
Nurse Practitioner - Adult Health in Rockville, MD

Q: What is Stefanie Holtzer's NPI number?

The NPI number for Stefanie Holtzer is 1730895046. It was assigned to this individual provider in the NPPES registry on January 30, 2023.

Q: What is Stefanie Holtzer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Q: When was this NPI record last updated?

The NPPES record for Stefanie Holtzer was last updated on February 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 30, 2023PECOS EnrolledAccepts Medicare Assignment

1201 SEVEN LOCKS RD STE 111, ROCKVILLE, MD 20854(301) 762-5020 Get Directions Write a Review

NPPES record last updated: February 25, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 25, 2023, Jan 30, 2023 (2 updates tracked since 2023).

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About Stefanie Holtzer Np NPPES

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

STEFANIE HOLTZER NP (NPI 1730895046) is an individual adult health provider in Rockville, Maryland, licensed in Maryland (R224556) and active in the NPI registry since January 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1730895046

Entity TypeIndividualFemale

Primary Taxonomy363LA2200X

Provider Legal NameSTEFANIE HOLTZERCredential: NP

Location Address1201 SEVEN LOCKS RD STE 111Rockville, MD 20854-2957

Mailing Address1201 Seven Locks Rd Ste 111Rockville, MD 20854-2957 · (301) 762-5020

Phone(301) 762-5020

Sole ProprietorYes

Medical School CMSOtherGraduated 2022

Enumeration DateJanuary 30, 2023

Last NPPES UpdateFebruary 25, 20232 updates tracked since enumeration

NPPES CertifiedFebruary 25, 2023

✔ NPI 1730895046 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LA2200X

License✔ Licensed in MD · R224556

Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License R224556 (MD)

Also ListedNurse Practitioner · Primary CareTaxonomy 363LP2300X · License R224556 (MD)

1201 SEVEN LOCKS RD STE 111, Rockville, MD 20854

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stefanie Holtzer Np 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 ID8123488079

PECOS Enrollment IDI20230724003075

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.

Medicare Billing Reassignments

Medicare enrollment records show Stefanie Holtzer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Privia Care Center LLC

13 mi

Internal Medicine

950 N GLEBE RD, SUITE 4000
Arlington, VA 22203

Reassigned Medicare billing, District of Columbia and Maryland enrollments
242 clinicians in this Medicare group

NPI 1164874426 (571) 366-8850

Privia Medical Group, LLC

13 mi

Internal Medicine

950 N GLEBE RD STE 700
Arlington, VA 22203

Reassigned Medicare billing, District of Columbia enrollment
1,534 clinicians in this Medicare group

NPI 1013042480 (571) 366-8850

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 20

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 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.

474 services413 patients

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.

301 services260 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

174 services145 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

133 services121 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

130 services119 patients

Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid 19), influenza a, influenza b, and respiratory syncytial virus, upper respiratory specimen, each reported as detected or not detected 0241U

This test detects the RNA of respiratory viruses, including COVID-19, Influenza A, Influenza B, and Respiratory Syncytial Virus, in an upper respiratory specimen. The test result will report if each virus is detected or not, helping in accurate diagnosis.

115 services110 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

79 services79 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

71 services67 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

50 services50 patients

Manual urinalysis test with examination using microscope, automated 81001

A manual urinalysis test with automated microscopic examination is a lab process that checks your urine for health indicators. It involves a machine scanning your sample to identify any abnormal elements, which can assist in diagnosing various conditions.

48 services46 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

48 services46 patients

Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique 87651

This test detects Group A Streptococcus bacteria in your body. It uses an amplified probe technique, which amplifies the bacteria's nucleic acid, making it easier to identify. This test helps diagnose conditions like strep throat or scarlet fever.

47 services46 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

45 services42 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

42 services41 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

37 services37 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.

30 services29 patients

Respiratory infectious agent detection by rna for severe acute respiratory syndrome coronavirus 2 (covid-19), influenza a, and influenza b) in upper respiratory specimen, each reported as detected or not detected 0240U

This is a test to detect specific respiratory infections, including COVID-19, Influenza A, and Influenza B. It involves taking a sample from your upper respiratory tract, then using RNA analysis to identify if these viruses are present. Results are reported as 'detected' or 'not detected'.

15 services15 patients

Amylase (enzyme) level 82150

Amylase is an enzyme that helps break down starches into sugars during digestion. An amylase level test measures the amount of this enzyme in your blood or urine. This test helps identify conditions like pancreatitis or other digestive issues.

15 services15 patients

Lipase (fat enzyme) level 83690

A Lipase Level test measures the amount of lipase in your blood. Lipase is an enzyme that helps your body digest fats. High or low levels can indicate problems with your pancreas, such as pancreatitis or other conditions. This test helps your doctor diagnose and monitor these conditions.

15 services15 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20854 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

$100.31 typical visit price

range $65.18 – $194.86

Typical copayment $25.07 (range $16.29 – $48.71)

Most-billed visit code 99203

Established Patient

$113.72 typical visit price

range $21.40 – $158.88

Typical copayment $28.43 (range $5.35 – $39.72)

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 16

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

SHEEVA MOSTOUFI PHD

Psychologist (Clinical)

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

ELEANOR TANNO M.D.

Family Medicine

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

PRIVIA MEDICAL GROUP, LLC

Internal Medicine

1201 SEVEN LOCKS RD STE 111
POTOMAC, MD 20854

Montgomery County (301) 762-5020

MARIA CATHERINE CACCAVO MSN, CRNP, FNP-C

Nurse Practitioner (Family)

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

LINDA T NGUYEN M.D.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

PRIVIA MEDICAL GROUP, LLC

Psychiatry & Neurology (Psychiatry)

1201 SEVEN LOCKS RD STE 111
POTOMAC, MD 20854

Montgomery County (301) 762-5020

ROBERT CHEN DO

Family Medicine

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

PASINDU BHARATHA SAMARASINGHE MBBS

Internal Medicine

1201 SEVEN LOCKS RD STE 111
ROCKVILLE, MD 20854

Montgomery County (301) 762-5020

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 Stefanie Holtzer's NPI number?

The NPI number for Stefanie Holtzer is 1730895046. It was assigned to this individual provider in the NPPES registry on January 30, 2023.

Where is Stefanie Holtzer located?

Stefanie Holtzer practices at 1201 Seven Locks Rd Ste 111, Rockville, MD 20854. The listed phone number is (301) 762-5020.

What is Stefanie Holtzer's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Stefanie Holtzer enrolled in Medicare?

Yes. Stefanie Holtzer 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.

Which organizations bill Medicare for Stefanie Holtzer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stefanie Holtzer reassigns Medicare benefits to 2 organizations: Privia Care Center LLC (Arlington, VA) and Privia Medical Group, LLC (Arlington, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stefanie Holtzer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stefanie Holtzer accept?

Health plans from Oscar Health list Stefanie Holtzer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Stefanie Holtzer was last updated on February 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.