Shirley Mirzaian, MS RD
NPI 1700048659 · Registered Dietitian · Montrose, CA
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shirley Mirzaian, MS RD is a Registered Dietitian provider in Montrose, CA (NPI 1700048659).
Provider details
- NPI number
- 1700048659
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS RD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 974811 (CA)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,191 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Therapy Procedure Reassessment for Nutrition Management, Each 15 Minutes97803 | 911 | $29 |
| Therapy Procedure for Nutrition Management, Each 15 Minutes97802 | 172 | $34 |
| Medical Nutrition Therapy; Reassessment and Subsequent Intervention(s) Following Second Referral in Same Year for Change in Diagnosis, Medical Condition Or Treatment Regimen (including Additional Hours Needed for Renal Disease), Individual, Face to Face WiG0270 | 108 | $29 |
Typical Medicare-allowed amounts for these services range $29–$34 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-07-01
- Last updated
- 2015-01-07
Frequently asked questions
- What is Shirley Mirzaian's NPI number?
- Shirley Mirzaian's National Provider Identifier (NPI) is 1700048659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shirley Mirzaian's specialty?
- Shirley Mirzaian is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Shirley Mirzaian located?
- Shirley Mirzaian's practice location on file with NPPES is 2155 Verdugo Blvd # 406, Montrose, CA 91020-1628.
- What is Shirley Mirzaian's phone number?
- The practice phone number listed in the NPPES registry for Shirley Mirzaian is (818) 522-9851.
- Does Shirley Mirzaian accept Medicare?
- Shirley Mirzaian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shirley Mirzaian's NPI active?
- Yes — Shirley Mirzaian's NPI (1700048659) is active in the NPPES registry as of the last update on 2015-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.