Derek Amanatullah, MD
NPI 1134386576 · Adult Reconstructive Orthopaedic Surgery Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Amanatullah, MD is a Adult Reconstructive Orthopaedic Surgery Physician provider in Stanford, CA (NPI 1134386576).
Provider details
- NPI number
- 1134386576
- Entity type
- Individual
- Primary specialty
- Adult Reconstructive Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 106870 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,259 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 328 | $79 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 231 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 144 | $114 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 121 | $56 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 99 | $202 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Celecoxib | 37 | 22 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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 no Part D record, 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.
$136,523 across 86 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
Additional practice locations (1)
- 450 Broadway Street, Mc6342Pavilion C, 4th FloorRedwood City, CA 94063-3132Phone: (650) 723-5643
Registry dates
- Enumerated
- 2008-05-22
- Last updated
- 2024-04-23
- Certified
- 2024-04-23
Frequently asked questions
- What is Derek Amanatullah's NPI number?
- Derek Amanatullah's National Provider Identifier (NPI) is 1134386576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Amanatullah's specialty?
- Derek Amanatullah is listed in the NPPES registry with a primary specialty of Adult Reconstructive Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Derek Amanatullah located?
- Derek Amanatullah's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Derek Amanatullah's phone number?
- The practice phone number listed in the NPPES registry for Derek Amanatullah is (650) 723-4000.
- Does Derek Amanatullah accept Medicare?
- Derek Amanatullah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Amanatullah's NPI active?
- Yes — Derek Amanatullah's NPI (1134386576) is active in the NPPES registry as of the last update on 2024-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.