NPPES file of Aug 9, 2026

Nakul Singh, MD

Ophthalmology Physician · Sacramento, CA

Nakul Singh, MD is an ophthalmology physician with a practice address in Sacramento, California, and NPI 1649776535, issued on Apr 1, 2018. Check the license (California A195329, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1649776535
Name
Nakul Singh
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A195329 CA
Self-reported in NPPES; status is on the state search
Practice location
3 Park Center Dr Ste 100, Sacramento, CA 95825
Phone
(916) 454-4861
Enumerated
Apr 1, 2018
Record last updated
Jul 9, 2024
Fax
(916) 454-3603
Medicare enrollment
Enrolled (PECOS I20240722002102); accepts Medicare assignment
Medical or professional school
Case Western University School Of Dental Medicine, 2018
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3 Park Center Dr Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Eliot Dow, M.D., PH.D.Retina Specialist (Ophthalmology) Physician1740711647
  2. Maryam Ghiassi, MDRetina Specialist (Ophthalmology) Physician1346773934
  3. Natalie Huang, MDRetina Specialist (Ophthalmology) Physician1366948598
  4. Mark McAllister, MDRetina Specialist (Ophthalmology) Physician1669934394
  5. Meera Ramakrishnan, MDRetina Specialist (Ophthalmology) Physician1659802387
  6. Dorotheea Warmerdam, MDOphthalmology Physician1033228739

Verify Nakul Singh in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A195329
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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78% fewer Medicare Part D claims than the average ophthalmology physician in 2024

338 Medicare Part D claims for 135 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Nakul Singh338
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate116 claims
  2. Erythromycin67 claims
  3. Ofloxacin42 claims
  4. Ketorolac Tromethamine23 claims
  5. Brimonidine Tartrate18 claims
  6. Latanoprost17 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score64.7
  2. Costout of 100 · 30%52.4
  3. Promoting interoperabilityout of 100 · 25%97.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $345.74

4 payments; by number, the most common kind was food and beverage; the largest payer was Biotissue Holdings Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Nakul Singh$345.74
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Vitreo-Retinal Medical Group, Inc.Sacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nakul Singh among 2,899 ophthalmology physician records in California

Nakul Singh, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 90% of them.

  • NPI issued2018 · 90% of these records are older, 8% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2001 among the 1,907 with a school on file
  • Record last updated2024 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Sidney Gutmann, MDSacramento, CA 958251689752321
  2. Elaine Harris Turner, MDSacramento, CA 958251841362696
  3. James Hine, MDSacramento, CA 958251407934102
  4. Sukhjit Johl, MDSacramento, CA 958251306924089
  5. James Kagan, MDSacramento, CA 958251750469466
  6. Kwang Kim, MDSacramento, CA 958251841326212
  7. Nilufar Maboudi, M.D.Sacramento, CA 958251194851311
  8. William McClanahan, MDSacramento, CA 958251770661472

Common questions

What is Nakul Singh, MD's NPI number?

Nakul Singh, MD's National Provider Identifier (NPI) is 1649776535, issued on Apr 1, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nakul Singh, MD located?

The NPPES record lists a practice address at 3 Park Center Dr Ste 100, Sacramento, CA, 95825. Phone: (916) 454-4861. Providers update this record themselves, so call before visiting.

How can I verify Nakul Singh, MD's license?

NPPES lists California license number A195329, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Nakul Singh, MD prescribe under Medicare Part D?

In 2024, Nakul Singh, MD had 338 Medicare Part D claims for 135 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Nakul Singh, MD's MIPS final score?

The 2023 MIPS final score is 74.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.