2026 NPPES data Psychiatry Physician NPI 1588929806 MD
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Najma Hamdani, MD

Psychiatry Physician in Stillwater, Oklahoma. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 53,104 in Psychiatry Physician, 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
379
Medicare Part D claims · 34 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.2/100
▲ 8 pts above national avg 83.1 · Exceptional
Industry payments
$23.34
1 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Najma Hamdani, MD reported a CMS MIPS final score of 91.2/100 - above the 83.1 national average - and filed 379 Medicare Part D claims in 2023.

91.2/100
MIPS score · +8 vs avg
379
Part D claims, 2023
96%
generic prescribing
Likely
board-certified (heuristic)

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.

Najma Hamdani, MD's MIPS score vs every scored U.S. clinician

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

91 Top 37% higher than 63% 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%). Below this entry. 90+: 189,403 scored providers (40%). This entry sits in this band. 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 Najma Hamdani, MD sits

This provider among psychiatry physician peers

Across the 4,659 psychiatry physician providers who report both Medicare Part D prescribing and a MIPS quality score, Najma Hamdani, MD writes more Part D claims than 49% of them and scores higher on MIPS quality than 62% - placing this provider in the lower-volume, high-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 quality0255075100024.949.974.899.8Part D claim volume, percentile in specialtyMIPS quality, percentilePart D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 57Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 92Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 55Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 52Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 3Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 88Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 48Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 80Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 37Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 82Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 38Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 42Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 73Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 72Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 7Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 43Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 70Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 53Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 32Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 50Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 33Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 35Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 18Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 77Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 45Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 93Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 67Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 85Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 20Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 75Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 5Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 58Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 78Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 10Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 28Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 47Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 0Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 30Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 15Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 95Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 62Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 83Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 8Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 38Najma Hamdani, MD-Part D claim volume, percentile in specialty: 49 · MIPS quality, percentile: 62
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one psychiatry physician peer from a representative sample of 60; the gold marker is Najma Hamdani, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

Board certification likely (heuristic, not verified)

Najma Hamdani, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Najma Hamdani, MD?

High performer (top quartile)

NPI registry status

Active

Issued 07/12/2012

NPI 1588929806

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

379 63% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

MIPS final score

91.2/100 8.1 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in Oklahoma

How Psychiatry Physician compares to other specialties among Oklahoma providers

Oklahoma providers

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

Case Manager/Care Coordinator - 9.7%Case Manager/Care Coordinator9.7%Mental Health Counselor - 7.2%Mental Health Counselor7.2%Behavior Technician - 6.2%Behavior Technician6.2%Peer Specialist - 5.5%Peer Specialist5.5%Counselor - 5%Counselor5%Student in an Organized Health Care Education/Training Program - 4.2%Student in an Organized Health Care Education/Training Program4.2%Psychiatry Physician - 0.5%Psychiatry Physician0.5%
Largest specialties in Oklahoma (% of in-state providers)

Medicare quality performance, MIPS

Najma Hamdani, MD's 2023 MIPS final score plotted against the Psychiatry Physician national average

High performer (top quartile)
MIPS Final Score
91.2/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatry Physician) - 91.2/100 vs national avg 83.1

0%100%National avg83%91.2%
MIPS final score (Psychiatry Physician) - 91.2/100 vs national avg 83.1

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).

Najma Hamdani, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 406 E HALL OF FAME AVE, Stillwater, OK, 74075, with a listed phone of (405) 372-1480. NPI 1588929806 was issued on 07/12/2012. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Hamdani 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 379 prescription claims written by this provider, covering 34 Medicare beneficiaries and totaling roughly $21K in drug spend, split 4% brand-name and 96% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 91.2/100 for the 2023 performance year (Quality 79.3), compared with the national average of 83.1.

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

406 E HALL OF FAME AVE
Stillwater, OK 74075

Provider Details

NPI 1588929806
Specialty Psychiatry Physician
Credentials MD
Gender Female
NPI Issued 07/12/2012

CMS Quality Score (MIPS)

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

91.1858
Final Score
Avg: 83.1
79.2714
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Najma Hamdani, MD 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.

State OF Oklahoma
Norman, OK

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 Najma Hamdani, MD. Source: openpaymentsdata.cms.gov.

Total received

$23

Largest payer

Lundbeck LLC

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 · Generic-heavy

Najma Hamdani, MD - brand share 4.0%
Psychiatry Physician average

4% brand-name claims vs 96% generic, on 379 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.

379
Total Claims
$21K
Total Drug Cost
34
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
569
Total Day Supply
16,914
Brand vs Generic
4% brand / 96% generic
Brand Drug Cost
$7K
Generic Drug Cost
$14K

Patient Demographics

Average Patient Age
60.6 years
Avg HCC Risk Score
1.37
Age Distribution
<65: 16, 65-74: 14, 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 Najma Hamdani, MD 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
Buspirone Hcl
50
Duloxetine Hcl
50
Trazodone Hcl
46
Fluoxetine Hcl
29
Citalopram Hbr
Citalopram Hydrobromide
21
Sertraline Hcl
20
Bupropion Hcl
18
Lamotrigine
18
Quetiapine Fumarate
16
Aripiprazole
15

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

Psychiatry Physician Overview

How Najma Hamdani, MD 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

Najma Hamdani, MD's 379 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Oklahoma

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

Compare Psychiatry Physician 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 Oklahoma medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Psychiatry Physician 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 Najma Hamdani, MD's specialty?
Najma Hamdani, MD specializes in Psychiatry Physician and practices in Stillwater, Oklahoma. Credentials: MD.
How much does Najma Hamdani, MD prescribe under Medicare Part D?
In 2023, Najma Hamdani, MD wrote 379 Medicare Part D claims totaling $21K in drug costs for 34 beneficiaries.
What is Najma Hamdani, MD's Medicare quality score?
Najma Hamdani, MD has a CMS MIPS Final Score of 91.2/100 (Quality: 79.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Najma Hamdani, MD located?
Najma Hamdani, MD is located at 406 E HALL OF FAME AVE, Stillwater, OK, 74075. Phone: (405) 372-1480.
What is Najma Hamdani, MD's NPI number?
Najma Hamdani, MD's National Provider Identifier (NPI) is 1588929806, issued on 07/12/2012.
Does Najma Hamdani, MD prescribe more brand-name or generic drugs?
Najma Hamdani, MD's prescribing is 4% brand-name and 96% generic drugs by claim count, with $7K 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 Najma Hamdani, MD prescribe most often?
Based on 2023 Medicare Part D data, Najma Hamdani, MD's most frequently prescribed drugs include Buspirone Hcl, Duloxetine Hcl, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Najma Hamdani, MD accept Medicare?
Najma Hamdani, MD appears in CMS Medicare data with 379 Part D claims and 34 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Najma Hamdani, MD's credentials?
Najma Hamdani, MD's NPI is 1588929806 with credentials MD. 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.
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.