Nakul Singh, MD
NPI 1649776535 · Ophthalmology Physician · Sacramento, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nakul Singh, MD is a Ophthalmology Physician provider in Sacramento, CA (NPI 1649776535).
Provider details
- NPI number
- 1649776535
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A195329 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
445 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 154 | $41 |
| Injection of Drug Into Eye67028 | 68 | $130 |
| Exam of Retinal Blood Vessels Using a Special Camera After Injection of a Dye92235 | 35 | $172 |
| Removal of Membrane of Retina With Removal of Internal Limiting Membrane of Retina67042 | 24 | $229 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 23 | $94 |
| Photography of the Retina92250 | 22 | $37 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 116 | 83 |
| Erythromycin Basebrand: Erythromycin | 67 | 59 |
| Ofloxacin | 42 | 41 |
| Ketorolac Tromethamine | 23 | 11 |
| Brimonidine Tartrate | 18 | — |
| Latanoprost | 17 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 16 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$346 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-01
- Last updated
- 2024-07-09
- Certified
- 2024-07-09
Frequently asked questions
- What is Nakul Singh's NPI number?
- Nakul Singh's National Provider Identifier (NPI) is 1649776535, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nakul Singh's specialty?
- Nakul Singh is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Nakul Singh located?
- Nakul Singh's practice location on file with NPPES is 3 Park Center Dr Ste 100, Sacramento, CA 95825-8340.
- What is Nakul Singh's phone number?
- The practice phone number listed in the NPPES registry for Nakul Singh is (916) 454-4861.
- Does Nakul Singh accept Medicare?
- Nakul Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nakul Singh's NPI active?
- Yes — Nakul Singh's NPI (1649776535) is active in the NPPES registry as of the last update on 2024-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.