2026 NPPES data Anesthesiology Physician NPI 1669630901 M.D.
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Naileshni Singh, M.D.

Anesthesiology Physician in Sacramento, California. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers — including 56,398 in Anesthesiology 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
177
Medicare Part D claims · 50 beneficiaries · Anesthesiology Physician avg: 860
MIPS score
90.9/100
▲ 8 pts above national avg 83.1 · Exceptional
Industry payments
$702.07
8 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Naileshni Singh, M.D. reported a CMS MIPS final score of 90.9/100 — above the 83.1 national average — and filed 177 Medicare Part D claims in 2023.

90.9/100
MIPS score · +8 vs avg
177
Part D claims, 2023
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.

Naileshni Singh, 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

91 Top 40% higher than 60% 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

Where Naileshni Singh, M.D. sits

This provider among anesthesiology physician peers

Across the 1,666 anesthesiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Naileshni Singh, M.D. writes more Part D claims than 37% of them and scores higher on MIPS quality than 70% — 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 quality0255075100024.148.372.496.6Part D claim volume — percentile in specialtyMIPS quality — percentilePart D claim volume — percentile in specialty: 65 · MIPS quality — percentile: 87Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 47Part D claim volume — percentile in specialty: 78 · MIPS quality — percentile: 62Part D claim volume — percentile in specialty: 70 · MIPS quality — percentile: 22Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 55Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 57Part D claim volume — percentile in specialty: 68 · MIPS quality — percentile: 17Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 5Part D claim volume — percentile in specialty: 47 · MIPS quality — percentile: 3Part D claim volume — percentile in specialty: 58 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 90 · MIPS quality — percentile: 65Part D claim volume — percentile in specialty: 75 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 12 · MIPS quality — percentile: 82Part D claim volume — percentile in specialty: 100 · MIPS quality — percentile: 43Part D claim volume — percentile in specialty: 8 · MIPS quality — percentile: 78Part D claim volume — percentile in specialty: 87 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 43 · MIPS quality — percentile: 7Part D claim volume — percentile in specialty: 20 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 38 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 52 · MIPS quality — percentile: 70Part D claim volume — percentile in specialty: 77 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 82 · MIPS quality — percentile: 15Part D claim volume — percentile in specialty: 28 · MIPS quality — percentile: 18Part D claim volume — percentile in specialty: 40 · MIPS quality — percentile: 83Part D claim volume — percentile in specialty: 95 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 53Part D claim volume — percentile in specialty: 73 · MIPS quality — percentile: 2Part D claim volume — percentile in specialty: 55 · MIPS quality — percentile: 63Part D claim volume — percentile in specialty: 97 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 98 · MIPS quality — percentile: 0Part D claim volume — percentile in specialty: 85 · MIPS quality — percentile: 8Part D claim volume — percentile in specialty: 30 · MIPS quality — percentile: 52Part D claim volume — percentile in specialty: 0 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 13 · MIPS quality — percentile: 12Part D claim volume — percentile in specialty: 80 · MIPS quality — percentile: 45Part D claim volume — percentile in specialty: 5 · MIPS quality — percentile: 92Part D claim volume — percentile in specialty: 22 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 33 · MIPS quality — percentile: 68Part D claim volume — percentile in specialty: 67 · MIPS quality — percentile: 88Part D claim volume — percentile in specialty: 92 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 45 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 27 · MIPS quality — percentile: 50Part D claim volume — percentile in specialty: 50 · MIPS quality — percentile: 13Part D claim volume — percentile in specialty: 63 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 32 · MIPS quality — percentile: 42Part D claim volume — percentile in specialty: 35 · MIPS quality — percentile: 10Part D claim volume — percentile in specialty: 42 · MIPS quality — percentile: 90Part D claim volume — percentile in specialty: 23 · MIPS quality — percentile: 20Part D claim volume — percentile in specialty: 17 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 88 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 15 · MIPS quality — percentile: 58Part D claim volume — percentile in specialty: 62 · MIPS quality — percentile: 72Part D claim volume — percentile in specialty: 83 · MIPS quality — percentile: 40Part D claim volume — percentile in specialty: 53 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 93 · MIPS quality — percentile: 23Part D claim volume — percentile in specialty: 60 · MIPS quality — percentile: 60Part D claim volume — percentile in specialty: 25 · MIPS quality — percentile: 80Part D claim volume — percentile in specialty: 72 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 48 · MIPS quality — percentile: 73Part D claim volume — percentile in specialty: 2 · MIPS quality — percentile: 48Naileshni Singh, M.D. — Part D claim volume — percentile in specialty: 37 · MIPS quality — percentile: 70
Part D claim volume vs MIPS quality, by specialty percentile

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

Board certification likely (heuristic — not verified)

Naileshni Singh, M.D. 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 Naileshni Singh, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/22/2008

NPI 1669630901

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

177 79% vs specialty avg

2023 prescription claims

Specialty avg: 860

MIPS final score

90.9/100 7.8 pts vs avg

Exceptional band

vs 83.1 national avg

Specialty distribution in California

How Anesthesiology Physician compares to other specialties among California providers

California providers

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

Behavior Technician — 17.3%Behavior Technician17.3%Marriage & Family Therapist — 5.5%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program — 5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor — 3.9%Mental Health Counselor3.9%Pharmacist — 3.5%Pharmacist3.5%Clinical Social Worker — 3.1%Clinical Social Worker3.1%Anesthesiology Physician — 0.8%Anesthesiology Physician0.8%
Largest specialties in California (% of in-state providers)

Medicare quality performance — MIPS

Naileshni Singh, M.D.'s 2023 MIPS final score plotted against the Anesthesiology Physician national average

High performer (top quartile)
MIPS Final Score
90.9/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Anesthesiology Physician) — 90.9/100 vs national avg 83.1

0%100%National avg83%90.9%
MIPS final score (Anesthesiology Physician) — 90.9/100 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).

Naileshni Singh, M.D. appears in the CMS NPPES registry as a Anesthesiology Physician provider holding M.D. credentials at 4150 V ST, Sacramento, CA, 95817, with a listed phone of (916) 734-5630. NPI 1669630901 was issued on 05/22/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Singh 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 177 prescription claims written by this provider, covering 50 Medicare beneficiaries and totaling roughly $7K in drug spend, with an opioid prescribing rate of 9.0%. 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 90.9/100 for the 2023 performance year (Quality 63.4), compared with the national average of 83.1.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 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

4150 V ST
Sacramento, CA 95817

Provider Details

NPI 1669630901
Specialty Anesthesiology Physician
Credentials M.D.
Gender Female
NPI Issued 05/22/2008

CMS Quality Score (MIPS)

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

90.928
Final Score
Avg: 83.1
63.354
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Naileshni Singh, M.D. 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.

Regents OF The Univ OF CA
Sacramento, CA

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 Naileshni Singh, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$702

Largest payer

MML US, 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 — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to Naileshni Singh, M.D.. To verify Naileshni Singh, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

177
Total Claims
$7K
Total Drug Cost
50
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
225
Total Day Supply
6,471
Generic Drug Cost
$7K
Opioid Claims
16 (9.0% rate)

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.19
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

What Naileshni Singh, 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
Gabapentin
54
Duloxetine Hcl
45
Meloxicam
21
Tizanidine Hcl
15

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

Anesthesiology Physician Overview

How Naileshni Singh, M.D. fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

Naileshni Singh, M.D.'s 177 claims are below the specialty average of 860.

Nearby Anesthesiology Physician Providers in California

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

Compare Anesthesiology 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 California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Anesthesiology 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 Naileshni Singh, M.D.'s specialty?
Naileshni Singh, M.D. specializes in Anesthesiology Physician and practices in Sacramento, California. Credentials: M.D..
How much does Naileshni Singh, M.D. prescribe under Medicare Part D?
In 2023, Naileshni Singh, M.D. wrote 177 Medicare Part D claims totaling $7K in drug costs for 50 beneficiaries.
What is Naileshni Singh, M.D.'s Medicare quality score?
Naileshni Singh, M.D. has a CMS MIPS Final Score of 90.9/100 (Quality: 63.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Naileshni Singh, M.D. located?
Naileshni Singh, M.D. is located at 4150 V ST, Sacramento, CA, 95817. Phone: (916) 734-5630.
What is Naileshni Singh, M.D.'s NPI number?
Naileshni Singh, M.D.'s National Provider Identifier (NPI) is 1669630901, issued on 05/22/2008.
Does Naileshni Singh, M.D. prescribe opioids?
Yes, Naileshni Singh, M.D. had 16 opioid claims in 2023 with an opioid prescribing rate of 9.0%.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Naileshni Singh, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Naileshni Singh, M.D.'s most frequently prescribed drugs include Gabapentin, Duloxetine Hcl, Meloxicam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Naileshni Singh, M.D. accept Medicare?
Naileshni Singh, M.D. appears in CMS Medicare data with 177 Part D claims and 50 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Naileshni Singh, M.D.'s credentials?
Naileshni Singh, M.D.'s NPI is 1669630901 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

Compiled from official public sources by the PlainDoctor editorial team.