2026 NPPES data Psychiatry Physician NPI 1851540165 MD
Verify on CMS →

RAJA GILL, MD

Psychiatry Physician in CHICAGO, Illinois. 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
9K
Medicare Part D claims · 744 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
20.5653/100
▼ 63 pts below national avg 83.1 · [object Object]
Industry payments
$416.12
3 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

RAJA GILL, MD reported a CMS MIPS final score of 20.5653/100 — below the 83.1 national average — and filed 8,778 Medicare Part D claims in 2023.

20.5653/100
MIPS score · -63 vs avg
9K
Part D claims, 2023
97%
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.

RAJA GILL, MD's MIPS score vs every scored U.S. clinician

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

21 2nd percentile higher than 2% 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%). This entry sits in this band. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 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

Board certification likely (heuristic — not verified)

RAJA GILL, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 RAJA GILL, MD?

Below national average

NPI registry status

Active

Issued 09/10/2008

NPI 1851540165

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

8,778 746% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

MIPS final score

20.5653/100 62.534699999999994% pts

Below average band

vs 83.1 national avg

Specialty distribution in Illinois

How Psychiatry Physician compares to other specialties among Illinois providers

Illinois providers

Psychiatry Physician share within Illinois

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

Medicare quality performance — MIPS

RAJA GILL, MD's 2023 MIPS final score plotted against the Psychiatry Physician national average

Below national average
MIPS Final Score
20.5653/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Psychiatry Physician) — 20.5653/100 vs national avg 83.1

0%100%National avg83%20.6%
MIPS final score (Psychiatry Physician) — 20.5653/100 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).

RAJA GILL, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 1500 S CALIFORNIA AVE, CHICAGO, IL, 60608, with a listed phone of (773) 592-8454. NPI 1851540165 was issued on 09/10/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GILL 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 8,778 prescription claims written by this provider, covering 744 Medicare beneficiaries and totaling roughly $766K in drug spend, split 3% brand-name and 97% 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 20.5653/100 for the 2023 performance year (Quality 0, Cost 68.551), 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

1500 S CALIFORNIA AVE
CHICAGO, IL 60608

Provider Details

NPI 1851540165
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 09/10/2008

CMS Quality Score (MIPS)

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

20.5653
Final Score
Avg: 83.1
0
Quality
68.551
Cost

Reporting: Individual

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 RAJA GILL, MD. Source: openpaymentsdata.cms.gov.

Total received

$416

Largest payer

Impulse Dynamics (USA) 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.

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to RAJA GILL, MD. To verify RAJA GILL, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

RAJA GILL, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 8,778 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.

8,778
Total Claims
$766K
Total Drug Cost
744
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,818
Total Day Supply
201,760
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$149K
Generic Drug Cost
$617K

Patient Demographics

Average Patient Age
61.8 years
Avg HCC Risk Score
2.36
Gender Split
43% female / 57% male
Age Distribution
<65: 387, 65-74: 212, 75-84: 99, 85+: 46

Top Prescribed Drugs (Medicare Part D)

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

What RAJA GILL, 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
Quetiapine Fumarate
875
Chlorpromazine Hcl
810
Risperidone
510
Fluphenazine Hcl
496
Divalproex Sodium
481
Olanzapine
464
Lorazepam
454
Trazodone Hcl
443
Haloperidol
373
Benztropine Mesylate
342

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

Psychiatry Physician Overview

How RAJA GILL, 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

RAJA GILL, MD's 8,778 claims are above the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Illinois

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

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

Frequently Asked Questions

What is RAJA GILL, MD's specialty?
RAJA GILL, MD specializes in Psychiatry Physician and practices in CHICAGO, Illinois. Credentials: MD.
How much does RAJA GILL, MD prescribe under Medicare Part D?
In 2023, RAJA GILL, MD wrote 8,778 Medicare Part D claims totaling $766K in drug costs for 744 beneficiaries.
What is RAJA GILL, MD's Medicare quality score?
RAJA GILL, MD has a CMS MIPS Final Score of 20.5653/100 (Quality: 0, Cost: 68.551). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is RAJA GILL, MD located?
RAJA GILL, MD is located at 1500 S CALIFORNIA AVE, CHICAGO, IL, 60608. Phone: (773) 592-8454.
What is RAJA GILL, MD's NPI number?
RAJA GILL, MD's National Provider Identifier (NPI) is 1851540165, issued on 09/10/2008.
Does RAJA GILL, MD prescribe more brand-name or generic drugs?
RAJA GILL, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $149K 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 RAJA GILL, MD prescribe most often?
Based on 2023 Medicare Part D data, RAJA GILL, MD's most frequently prescribed drugs include Quetiapine Fumarate, Chlorpromazine Hcl, Risperidone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RAJA GILL, MD accept Medicare?
RAJA GILL, MD appears in CMS Medicare data with 8,778 Part D claims and 744 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RAJA GILL, MD's credentials?
RAJA GILL, MD's NPI is 1851540165 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