2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1508935222 M.D.
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NITTOR JAYARAM, M.D.

Endocrinology, Diabetes & Metabolism Physician in ORLAND PARK, 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
6K
Medicare Part D claims · 526 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
55%
generic claims · 45% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
94.1036/100
▲ 11 pts above national avg 83.1 · [object Object]
Industry payments
$14.31
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NITTOR JAYARAM, M.D. reported a CMS MIPS final score of 94.1036/100 — above the 83.1 national average — and filed 5,689 Medicare Part D claims in 2023.

94.1036/100
MIPS score · +11 vs avg
6K
Part D claims, 2023
55%
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.

NITTOR JAYARAM, M.D.'s MIPS score vs every scored U.S. clinician

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

94 Top 25% higher than 75% 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. 90–100: 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

Board certification likely (heuristic — not verified)

NITTOR JAYARAM, M.D. 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 NITTOR JAYARAM, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 11/07/2006

NPI 1508935222

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

5,689 116% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

94.1036/100 11.003600000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Illinois

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Illinois providers

Illinois providers

Endocrinology, Diabetes & Metabolism Physician share within Illinois

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Illinois

Medicare quality performance — MIPS

NITTOR JAYARAM, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

High performer (top quartile)
MIPS Final Score
94.1036/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 94.1036/100 vs national avg 83.1

0%100%National avg83%94.1%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 94.1036/100 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).

NITTOR JAYARAM, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider practicing in ORLAND PARK, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1508935222. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

NITTOR JAYARAM, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 15300 WEST AVE, ORLAND PARK, IL, 60462, with a listed phone of (708) 403-8400. NPI 1508935222 was issued on 11/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what JAYARAM 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 5,689 prescription claims written by this provider, covering 526 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, split 45% brand-name and 55% 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 94.1036/100 for the 2023 performance year (Quality 82.5938), compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

15300 WEST AVE
ORLAND PARK, IL 60462

Provider Details

NPI 1508935222
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 11/07/2006

CMS Quality Score (MIPS)

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

94.1036
Final Score
Avg: 83.1
82.5938
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

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 NITTOR JAYARAM, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$14

Largest payer

Abbott Laboratories

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 NITTOR JAYARAM, M.D.. To verify NITTOR JAYARAM, M.D.'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 · Above average

NITTOR JAYARAM, M.D. — brand share 45.0%
Specialty average (est.)

45% brand-name claims vs 55% generic, on 5,689 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.

5,689
Total Claims
$2.3M
Total Drug Cost
526
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13,523
Total Day Supply
402,728
Brand vs Generic
45% brand / 55% generic
Brand Drug Cost
$2.2M
Generic Drug Cost
$77K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
73.3 years
Avg HCC Risk Score
1.43
Gender Split
54% female / 46% male
Age Distribution
<65: 43, 65-74: 249, 75-84: 190, 85+: 44

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Levothyroxine Sodium
864
Metformin Hcl
450
Glimepiride
266
Jardiance
Empagliflozin
184
Synthroid
Levothyroxine Sodium
173
Janumet
Sitagliptin Phos/Metformin Hcl
169
Trulicity
Dulaglutide
143
Atorvastatin Calcium
127
Glipizide
114
Ozempic
Semaglutide
98

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

Endocrinology, Diabetes & Metabolism Physician Overview

How NITTOR JAYARAM, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

NITTOR JAYARAM, M.D.'s 5,689 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Illinois

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NITTOR JAYARAM, M.D.'s specialty?
NITTOR JAYARAM, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in ORLAND PARK, Illinois. Credentials: M.D..
How much does NITTOR JAYARAM, M.D. prescribe under Medicare Part D?
In 2023, NITTOR JAYARAM, M.D. wrote 5,689 Medicare Part D claims totaling $2.3M in drug costs for 526 beneficiaries.
What is NITTOR JAYARAM, M.D.'s Medicare quality score?
NITTOR JAYARAM, M.D. has a CMS MIPS Final Score of 94.1036/100 (Quality: 82.5938). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is NITTOR JAYARAM, M.D. located?
NITTOR JAYARAM, M.D. is located at 15300 WEST AVE, ORLAND PARK, IL, 60462. Phone: (708) 403-8400.
What is NITTOR JAYARAM, M.D.'s NPI number?
NITTOR JAYARAM, M.D.'s National Provider Identifier (NPI) is 1508935222, issued on 11/07/2006.
Does NITTOR JAYARAM, M.D. prescribe more brand-name or generic drugs?
NITTOR JAYARAM, M.D.'s prescribing is 45% brand-name and 55% generic drugs by claim count, with $2.2M in brand drug costs.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does NITTOR JAYARAM, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NITTOR JAYARAM, M.D.'s most frequently prescribed drugs include Levothyroxine Sodium, Metformin Hcl, Glimepiride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NITTOR JAYARAM, M.D. accept Medicare?
NITTOR JAYARAM, M.D. appears in CMS Medicare data with 5,689 Part D claims and 526 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NITTOR JAYARAM, M.D.'s credentials?
NITTOR JAYARAM, M.D.'s NPI is 1508935222 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.
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