2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1225384431 PMH-NP
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Tammy Acker, PMH-NP

Psychiatric/Mental Health Nurse Practitioner in Timonium, Maryland.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 39,953 in Psychiatric/Mental Health 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
293
Medicare Part D claims · 56 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84.8/100
▲ 2 pts above national avg 83.1 · Above neutral
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Tammy Acker, PMH-NP reported a CMS MIPS final score of 84.8/100 - above the 83.1 national average - and filed 293 Medicare Part D claims in 2023.

84.8/100
MIPS score · +2 vs avg
293
Part D claims, 2023
95%
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.

Tammy Acker, PMH-NP's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure

85 45th percentile higher than 45% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90+: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Where Tammy Acker, PMH-NP sits

This provider among psychiatric/mental health nurse practitioner peers

Across the 1,917 psychiatric/mental health nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Tammy Acker, PMH-NP writes more Part D claims than 37% of them and scores higher on MIPS quality than 44% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 12Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 40Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 68Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 25Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 23Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 27Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 87Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 97Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 22Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 60Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 65Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 98Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 13Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 63Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 2Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 90Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 43Tammy Acker, PMH-NP-Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 44
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one psychiatric/mental health nurse practitioner peer from a representative sample of 60; the gold marker is Tammy Acker, PMH-NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Tammy Acker, PMH-NP?

Near national average

NPI registry status

Active

Issued 07/25/2012

NPI 1225384431

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

293 68% vs specialty avg

2023 prescription claims

Specialty avg: 927

MIPS final score

84.8/100 1.7 pts vs avg

Above neutral band

vs 83.1 national avg

Specialty distribution in Maryland

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

Maryland providers
Behavior Technician - 14.1%Behavior Technician14.1%Clinical Social Worker - 5.5%Clinical Social Worker5.5%Student in an Organized Health Care Education/Training Program - 4.5%Student in an Organized Health Care Education/Training Program4.5%Home Health Aide - 4.4%Home Health Aide4.4%Physical Therapist - 3.9%Physical Therapist3.9%Pharmacist - 3.6%Pharmacist3.6%Psychiatric/Mental Health Nurse Practitioner - 1.2%Psychiatric/Mental Health Nurse Practitioner1.2%
Largest specialties in Maryland (% of in-state providers)

Medicare quality performance, MIPS

Tammy Acker, PMH-NP's 2023 MIPS final score plotted against the Psychiatric/Mental Health Nurse Practitioner national average

Near national average
MIPS Final Score
84.8/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatric/Mental Health Nurse Practitioner) - 84.8/100 vs national avg 83.1

0%100%National avg83%84.8%
MIPS final score (Psychiatric/Mental Health Nurse Practitioner) - 84.8/100 vs national avg 83.1
How MIPS and board certification work

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).

Tammy Acker, PMH-NP appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMH-NP credentials at 1931 GREENSPRING DRIVE, Timonium, MD, 21093, with a listed phone of (410) 453-9553. NPI 1225384431 was issued on 07/25/2012.

Medicare Part D records for calendar year 2023 show 293 prescription claims written by this provider, covering 56 Medicare beneficiaries and totaling roughly $36K in drug spend, split 5% brand-name and 95% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 84.8/100 for the 2023 performance year (Quality 59, Cost 92.8), compared with the national average of 83.1.

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

1931 GREENSPRING DRIVE
Timonium, MD 21093

Provider Details

NPI 1225384431
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMH-NP
Gender Female
NPI Issued 07/25/2012

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

84.7753
Final Score
Avg: 83.1
58.961
Quality
92.79
Cost
77
Promoting Interoperability

Reporting: Group practice

Brand vs generic prescribing mix · Generic-heavy

Tammy Acker, PMH-NP - brand share 5.0%
Psychiatric/Mental Health Nurse Practitioner average

5% brand-name claims vs 95% generic, on 293 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.

293
Total Claims
$36K
Total Drug Cost
56
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
294
Total Day Supply
8,218
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$22K
Generic Drug Cost
$13K

Patient Demographics

Average Patient Age
45.3 years
Avg HCC Risk Score
1.20
Gender Split
66% female / 34% male

Top Prescribed Drugs (Medicare Part D)

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

What Tammy Acker, PMH-NP 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
Olanzapine
40
Divalproex Sodium
20
Benztropine Mesylate
19
Lithium Carbonate Er
Lithium Carbonate
18
Haloperidol
15
Trazodone Hcl
13
Clozapine
11
Quetiapine Fumarate
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 Tammy Acker, PMH-NP 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

Tammy Acker, PMH-NP's 293 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Maryland

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

Compare Psychiatric/Mental Health 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 Maryland medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Psychiatric/Mental Health 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 Tammy Acker, PMH-NP's specialty?
Tammy Acker, PMH-NP specializes in Psychiatric/Mental Health Nurse Practitioner and practices in Timonium, Maryland. Credentials: PMH-NP.
How much does Tammy Acker, PMH-NP prescribe under Medicare Part D?
In 2023, Tammy Acker, PMH-NP wrote 293 Medicare Part D claims totaling $36K in drug costs for 56 beneficiaries.
What is Tammy Acker, PMH-NP's Medicare quality score?
Tammy Acker, PMH-NP has a CMS MIPS Final Score of 84.8/100 (Quality: 59, Cost: 92.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tammy Acker, PMH-NP located?
Tammy Acker, PMH-NP is located at 1931 GREENSPRING DRIVE, Timonium, MD, 21093. Phone: (410) 453-9553.
What is Tammy Acker, PMH-NP's NPI number?
Tammy Acker, PMH-NP's National Provider Identifier (NPI) is 1225384431, issued on 07/25/2012.
Does Tammy Acker, PMH-NP prescribe more brand-name or generic drugs?
Tammy Acker, PMH-NP's prescribing is 5% brand-name and 95% generic drugs by claim count, with $22K 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 Tammy Acker, PMH-NP prescribe most often?
Based on 2023 Medicare Part D data, Tammy Acker, PMH-NP's most frequently prescribed drugs include Olanzapine, Divalproex Sodium, Benztropine Mesylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tammy Acker, PMH-NP accept Medicare?
Tammy Acker, PMH-NP appears in CMS Medicare data with 293 Part D claims and 56 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tammy Acker, PMH-NP's credentials?
Tammy Acker, PMH-NP's NPI is 1225384431 with credentials PMH-NP. 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

View source datasets and methodology notes
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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
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.