Alisan Fathalizadeh, M.D., M.P.H.
NPI 1649619990 · Surgery Physician · Orange, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alisan Fathalizadeh, M.D., M.P.H. is a Surgery Physician provider in Orange, CA (NPI 1649619990).
Provider details
- NPI number
- 1649619990
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., M.P.H.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 35.134132 (OH)
Specialties & taxonomies
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
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
187 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 66 | $72 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 29 | $76 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $123 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 19 | $46 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 17 | $77 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More |
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 |
|---|---|---|
| Oxycodone Hcl | 23 | 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.
$5,951 across 29 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 (4)
- 19200 Jamboree RdIrvine, CA 92612-2570Phone: (714) 456-7002
- 20 Duke Medicine CirDurham, NC 27710-2000Phone: (919) 684-5195
- 9500 Euclid AveCleveland, OH 44195Phone: (216) 444-2200
- 5501 Old York RdAlbert Einstein Medical CenterPhiladelphia, PA 19141-3018Phone: (215) 456-3443
Registry dates
- Enumerated
- 2013-06-20
- Last updated
- 2025-11-21
- Certified
- 2025-11-21
Frequently asked questions
- What is Alisan Fathalizadeh's NPI number?
- Alisan Fathalizadeh's National Provider Identifier (NPI) is 1649619990, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alisan Fathalizadeh's specialty?
- Alisan Fathalizadeh is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Alisan Fathalizadeh located?
- Alisan Fathalizadeh's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Alisan Fathalizadeh's phone number?
- The practice phone number listed in the NPPES registry for Alisan Fathalizadeh is (714) 456-8888.
- Does Alisan Fathalizadeh accept Medicare?
- Alisan Fathalizadeh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alisan Fathalizadeh's NPI active?
- Yes — Alisan Fathalizadeh's NPI (1649619990) is active in the NPPES registry as of the last update on 2025-11-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.