2026 NPPES data Psychiatry Physician NPI 1588728224 M.D.
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JANET JOHNSON, M.D.

Psychiatry Physician in NEW ORLEANS, Louisiana. 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
136
Medicare Part D claims · Psychiatry Physician avg: 1K
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JANET JOHNSON, M.D. filed 136 Medicare Part D claims in 2023 as a Psychiatry Physician in NEW ORLEANS, Louisiana, prescribing 90% generic.

136
Part D claims, 2023
90%
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.

JANET JOHNSON, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

136 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 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

Board-eligible specialty (heuristic — not verified)

JANET JOHNSON, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about JANET JOHNSON, M.D.?

Quality data not reported

NPI registry status

Active

Issued 12/20/2006

NPI 1588728224

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

136 87% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Louisiana

How Psychiatry Physician compares to other specialties among Louisiana providers

Louisiana providers

Psychiatry Physician share within Louisiana

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — 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).

JANET JOHNSON, M.D. appears in the CMS NPPES registry as a Psychiatry Physician provider holding M.D. credentials at 1415 TULANE AVE, NEW ORLEANS, LA, 70112, with a listed phone of (504) 988-2300. NPI 1588728224 was issued on 12/20/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JOHNSON 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 136 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $52K in drug spend, split 10% brand-name and 90% 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

1415 TULANE AVE
NEW ORLEANS, LA 70112

Provider Details

NPI 1588728224
Specialty Psychiatry Physician
Credentials M.D.
Gender Female
NPI Issued 12/20/2006

Brand vs generic prescribing mix · Typical

JANET JOHNSON, M.D. — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 136 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.

136
Total Claims
$52K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
143
Total Day Supply
4,270
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$42K
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
57.9 years
Avg HCC Risk Score
1.20

Top Prescribed Drugs (Medicare Part D)

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

What JANET JOHNSON, M.D. 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
31
Haloperidol
21
Benztropine Mesylate
14
Paliperidone Er
Paliperidone
13

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

Psychiatry Physician Overview

How JANET JOHNSON, M.D. fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

JANET JOHNSON, M.D.'s 136 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Louisiana

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JANET JOHNSON, M.D.'s specialty?
JANET JOHNSON, M.D. specializes in Psychiatry Physician and practices in NEW ORLEANS, Louisiana. Credentials: M.D..
How much does JANET JOHNSON, M.D. prescribe under Medicare Part D?
In 2023, JANET JOHNSON, M.D. wrote 136 Medicare Part D claims totaling $52K in drug costs for N/A beneficiaries.
Where is JANET JOHNSON, M.D. located?
JANET JOHNSON, M.D. is located at 1415 TULANE AVE, NEW ORLEANS, LA, 70112. Phone: (504) 988-2300.
What is JANET JOHNSON, M.D.'s NPI number?
JANET JOHNSON, M.D.'s National Provider Identifier (NPI) is 1588728224, issued on 12/20/2006.
Does JANET JOHNSON, M.D. prescribe more brand-name or generic drugs?
JANET JOHNSON, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $42K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does JANET JOHNSON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, JANET JOHNSON, M.D.'s most frequently prescribed drugs include Olanzapine, Haloperidol, Benztropine Mesylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JANET JOHNSON, M.D. accept Medicare?
JANET JOHNSON, M.D. appears in CMS Medicare data with 136 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JANET JOHNSON, M.D.'s credentials?
JANET JOHNSON, M.D.'s NPI is 1588728224 with credentials M.D.. 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