2026 NPPES data Family Nurse Practitioner NPI 1679572374 N.P.
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Tammie Walz, N.P.

Family Nurse Practitioner in Savannah, Georgia. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 209,817 in Family Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration — see our methodology.

Federal data — no proprietary rating. We show these CMS records as-is — no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
714
Medicare Part D claims · 401 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
82%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$52.54
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Tammie Walz, N.P. filed 714 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Savannah, Georgia, prescribing 82% generic.

714
Part D claims, 2023
82%
generic prescribing
$52.54
industry payments (Sunshine Act)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

Tammie Walz, N.P.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

714 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about Tammie Walz, N.P.?

Quality data not reported

NPI registry status

Active

Issued 07/15/2005

NPI 1679572374

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

714 42% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Georgia

How Family Nurse Practitioner compares to other specialties among Georgia providers

Georgia providers

Largest specialties in Georgia (% of in-state providers)

Behavior Technician — 7.3%Behavior Technician7.3%Pharmacist — 5.1%Pharmacist5.1%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Family Nurse Practitioner — 4.8%Family Nurse Practitioner4.8%Physical Therapist — 3.9%Physical Therapist3.9%Professional Counselor — 3.6%Professional Counselor3.6%
Largest specialties in Georgia (% of in-state providers)

Specialty board-certification context

Estimated specialty board-certified rate — Family Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Family Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Family Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Tammie Walz, N.P. appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding N.P. credentials at 1326 EISENHOWER DR, Savannah, GA, 31406, with a listed phone of (912) 691-4100. NPI 1679572374 was issued on 07/15/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Walz most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 714 prescription claims written by this provider, covering 401 Medicare beneficiaries and totaling roughly $51K in drug spend, split 14% brand-name and 82% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1326 EISENHOWER DR
Savannah, GA 31406

Provider Details

NPI 1679572374
Specialty Family Nurse Practitioner
Credentials N.P.
Gender Female
NPI Issued 07/15/2005

Hospital and facility affiliations

Facilities where Tammie Walz, N.P. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Privia Medical Group OF Georgia LLC
Fayetteville, GA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Tammie Walz, N.P.. Source: openpaymentsdata.cms.gov.

Total received

$53

Largest payer

Amgen Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Typical

Tammie Walz, N.P. — brand share 14.0%
Family Nurse Practitioner average

14% brand-name claims vs 82% generic, on 714 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

714
Total Claims
$51K
Total Drug Cost
401
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,025
Total Day Supply
21,998
Brand vs Generic
14% brand / 82% generic
Brand Drug Cost
$43K
Generic Drug Cost
$8K
Antibiotic Claims
219

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.68
Gender Split
65% female / 35% male
Age Distribution
<65: 43, 65-74: 181, 75-84: 135, 85+: 42

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Tammie Walz, N.P. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Cefuroxime
Cefuroxime Axetil
59
Doxycycline Hyclate
54
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
39
Methylprednisolone
30
Mupirocin
26
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
24
Albuterol Sulfate Hfa
Albuterol Sulfate
18
Azithromycin
18
Eliquis
Apixaban
15
Atorvastatin Calcium
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Nurse Practitioner Overview

How Tammie Walz, N.P. fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

Tammie Walz, N.P.'s 714 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Georgia

Other clinicians with the same primary specialty enrolled in Georgia, drawn from the same CMS NPPES roster as Walz.

Compare Family Nurse Practitioner nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the Georgia medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Family Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Tammie Walz, N.P.'s specialty?
Tammie Walz, N.P. specializes in Family Nurse Practitioner and practices in Savannah, Georgia. Credentials: N.P..
How much does Tammie Walz, N.P. prescribe under Medicare Part D?
In 2023, Tammie Walz, N.P. wrote 714 Medicare Part D claims totaling $51K in drug costs for 401 beneficiaries.
Where is Tammie Walz, N.P. located?
Tammie Walz, N.P. is located at 1326 EISENHOWER DR, Savannah, GA, 31406. Phone: (912) 691-4100.
What is Tammie Walz, N.P.'s NPI number?
Tammie Walz, N.P.'s National Provider Identifier (NPI) is 1679572374, issued on 07/15/2005.
Does Tammie Walz, N.P. prescribe more brand-name or generic drugs?
Tammie Walz, N.P.'s prescribing is 14% brand-name and 82% generic drugs by claim count, with $43K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does Tammie Walz, N.P. prescribe most often?
Based on 2023 Medicare Part D data, Tammie Walz, N.P.'s most frequently prescribed drugs include Cefuroxime, Doxycycline Hyclate, Nitrofurantoin Mono-Macro. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tammie Walz, N.P. accept Medicare?
Tammie Walz, N.P. appears in CMS Medicare data with 714 Part D claims and 401 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tammie Walz, N.P.'s credentials?
Tammie Walz, N.P.'s NPI is 1679572374 with credentials N.P.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the PlainDoctor editorial team.