2026 NPPES data Optometrist NPI 1104980846 O.D. M.B.A
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SELVIN GNANAKKAN, O.D. M.B.A

Optometrist in GLENDALE, Arizona. 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
376
Medicare Part D claims · 137 beneficiaries · Optometrist avg: 257
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
51.3087/100
▼ 32 pts below national avg 83.1 · [object Object]

What the federal data shows

SELVIN GNANAKKAN, O.D. M.B.A reported a CMS MIPS final score of 51.3087/100 — below the 83.1 national average — and filed 376 Medicare Part D claims in 2023.

51.3087/100
MIPS score · -32 vs avg
376
Part D claims, 2023
64%
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.

SELVIN GNANAKKAN, O.D. M.B.A's MIPS score vs every scored U.S. clinician

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

51 4th percentile higher than 4% 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%). This entry sits in this band. 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

What does the federal data show about SELVIN GNANAKKAN, O.D. M.B.A?

Below national average

NPI registry status

Active

Issued 12/20/2006

NPI 1104980846

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

376 46% vs specialty avg

2023 prescription claims

Specialty avg: 257

MIPS final score

51.3087/100 31.791299999999993% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Arizona

How Optometrist compares to other specialties among Arizona providers

Arizona providers

Optometrist share within Arizona

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Arizona

Medicare quality performance — MIPS

SELVIN GNANAKKAN, O.D. M.B.A's 2023 MIPS final score plotted against the Optometrist national average

Below national average
MIPS Final Score
51.3087/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Optometrist) — 51.3087/100 vs national avg 83.1

0%100%National avg83%51.3%
MIPS final score (Optometrist) — 51.3087/100 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).

SELVIN GNANAKKAN, O.D. M.B.A appears in the CMS NPPES registry as a Optometrist provider holding O.D. M.B.A credentials at 7122 N 59TH AVE FL 1, GLENDALE, AZ, 85301, with a listed phone of (623) 931-1043. NPI 1104980846 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 GNANAKKAN 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 376 prescription claims written by this provider, covering 137 Medicare beneficiaries and totaling roughly $63K in drug spend, split 36% brand-name and 64% 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 51.3087/100 for the 2023 performance year (Quality 100, Cost 21.029), compared with the national average of 83.1.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

7122 N 59TH AVE FL 1
GLENDALE, AZ 85301

Provider Details

NPI 1104980846
Specialty Optometrist
Credentials O.D. M.B.A
Gender Male
NPI Issued 12/20/2006

CMS Quality Score (MIPS)

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

51.3087
Final Score
Avg: 83.1
100
Quality
21.029
Cost
0
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where SELVIN GNANAKKAN, O.D. M.B.A 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.

CHESAPEAKE EYE CARE AND LASER CENTER LLC
BALTIMORE, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

SELVIN GNANAKKAN, O.D. M.B.A — brand share 36.0%
Specialty average (est.)

36% brand-name claims vs 64% generic, on 376 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.

376
Total Claims
$63K
Total Drug Cost
137
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
796
Total Day Supply
23,072
Brand vs Generic
36% brand / 64% generic
Brand Drug Cost
$51K
Generic Drug Cost
$12K

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.21
Gender Split
64% female / 36% male
Age Distribution
<65: 13, 65-74: 67, 75-84: 43, 85+: 14

Top Prescribed Drugs (Medicare Part D)

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

What SELVIN GNANAKKAN, O.D. M.B.A 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
Latanoprost
112
Ketorolac Tromethamine
36
Lumigan
Bimatoprost
25
Azelastine Hcl
22
Timolol Maleate
20
Brimonidine Tartrate
19
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
19
Erythromycin
Erythromycin Base
17
Prednisolone Acetate
11

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

Optometrist Overview

How SELVIN GNANAKKAN, O.D. M.B.A fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

SELVIN GNANAKKAN, O.D. M.B.A's 376 claims are above the specialty average of 257.

Nearby Optometrist Providers in Arizona

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is SELVIN GNANAKKAN, O.D. M.B.A's specialty?
SELVIN GNANAKKAN, O.D. M.B.A specializes in Optometrist and practices in GLENDALE, Arizona. Credentials: O.D. M.B.A.
How much does SELVIN GNANAKKAN, O.D. M.B.A prescribe under Medicare Part D?
In 2023, SELVIN GNANAKKAN, O.D. M.B.A wrote 376 Medicare Part D claims totaling $63K in drug costs for 137 beneficiaries.
What is SELVIN GNANAKKAN, O.D. M.B.A's Medicare quality score?
SELVIN GNANAKKAN, O.D. M.B.A has a CMS MIPS Final Score of 51.3087/100 (Quality: 100, Cost: 21.029). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SELVIN GNANAKKAN, O.D. M.B.A located?
SELVIN GNANAKKAN, O.D. M.B.A is located at 7122 N 59TH AVE FL 1, GLENDALE, AZ, 85301. Phone: (623) 931-1043.
What is SELVIN GNANAKKAN, O.D. M.B.A's NPI number?
SELVIN GNANAKKAN, O.D. M.B.A's National Provider Identifier (NPI) is 1104980846, issued on 12/20/2006.
Does SELVIN GNANAKKAN, O.D. M.B.A prescribe more brand-name or generic drugs?
SELVIN GNANAKKAN, O.D. M.B.A's prescribing is 36% brand-name and 64% generic drugs by claim count, with $51K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does SELVIN GNANAKKAN, O.D. M.B.A prescribe most often?
Based on 2023 Medicare Part D data, SELVIN GNANAKKAN, O.D. M.B.A's most frequently prescribed drugs include Latanoprost, Ketorolac Tromethamine, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SELVIN GNANAKKAN, O.D. M.B.A accept Medicare?
SELVIN GNANAKKAN, O.D. M.B.A appears in CMS Medicare data with 376 Part D claims and 137 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SELVIN GNANAKKAN, O.D. M.B.A's credentials?
SELVIN GNANAKKAN, O.D. M.B.A's NPI is 1104980846 with credentials O.D. M.B.A. 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