2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1538699319 PMHNP
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SARA MILLS, PMHNP

Psychiatric/Mental Health Nurse Practitioner in NASHVILLE, Tennessee. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
315
Medicare Part D claims · 64 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SARA MILLS, PMHNP filed 315 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in NASHVILLE, Tennessee, prescribing 87% generic.

315
Part D claims, 2023
87%
generic prescribing

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.

SARA MILLS, PMHNP's Medicare Part D volume vs every U.S. prescriber

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

315 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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 SARA MILLS, PMHNP?

Quality data not reported

NPI registry status

Active

Issued 06/14/2017

NPI 1538699319

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

315 66% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Tennessee

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Tennessee providers

Tennessee providers

Psychiatric/Mental Health Nurse Practitioner share within Tennessee

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Tennessee

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

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

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health 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).

SARA MILLS, PMHNP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP credentials at 3601 THE VANDERBILT CLINIC, NASHVILLE, TN, 37232, with a listed phone of (615) 322-5000. NPI 1538699319 was issued on 06/14/2017. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MILLS 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 315 prescription claims written by this provider, covering 64 Medicare beneficiaries and totaling roughly $37K in drug spend, split 13% brand-name and 87% 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.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 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

3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232

Provider Details

NPI 1538699319
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMHNP
Gender Female
NPI Issued 06/14/2017

Brand vs generic prescribing mix · Typical

SARA MILLS, PMHNP — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 315 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.

315
Total Claims
$37K
Total Drug Cost
64
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
495
Total Day Supply
14,550
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$29K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
60.2 years
Avg HCC Risk Score
1.64
Gender Split
69% female / 31% male
Age Distribution
<65: 38, 65-74: 15, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What SARA MILLS, PMHNP 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
Lamotrigine
24
Alprazolam
21
Clonazepam
19
Buspirone Hcl
18
Sertraline Hcl
17
Bupropion Xl
Bupropion Hcl
16
Duloxetine Hcl
13
Fluoxetine Hcl
12
Vraylar
Cariprazine Hcl
12
Hydroxyzine Hcl
11

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

Psychiatric/Mental Health Nurse Practitioner Overview

How SARA MILLS, PMHNP fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

SARA MILLS, PMHNP's 315 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Tennessee

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

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SARA MILLS, PMHNP's specialty?
SARA MILLS, PMHNP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in NASHVILLE, Tennessee. Credentials: PMHNP.
How much does SARA MILLS, PMHNP prescribe under Medicare Part D?
In 2023, SARA MILLS, PMHNP wrote 315 Medicare Part D claims totaling $37K in drug costs for 64 beneficiaries.
Where is SARA MILLS, PMHNP located?
SARA MILLS, PMHNP is located at 3601 THE VANDERBILT CLINIC, NASHVILLE, TN, 37232. Phone: (615) 322-5000.
What is SARA MILLS, PMHNP's NPI number?
SARA MILLS, PMHNP's National Provider Identifier (NPI) is 1538699319, issued on 06/14/2017.
Does SARA MILLS, PMHNP prescribe more brand-name or generic drugs?
SARA MILLS, PMHNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $29K in brand drug costs.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does SARA MILLS, PMHNP prescribe most often?
Based on 2023 Medicare Part D data, SARA MILLS, PMHNP's most frequently prescribed drugs include Lamotrigine, Alprazolam, Clonazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SARA MILLS, PMHNP accept Medicare?
SARA MILLS, PMHNP appears in CMS Medicare data with 315 Part D claims and 64 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SARA MILLS, PMHNP's credentials?
SARA MILLS, PMHNP's NPI is 1538699319 with credentials PMHNP. 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