Marissa Fernandez Kiemele, MD
NPI 1144297516 · Family Medicine Physician · Greenbrae, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Fernandez Kiemele, MD is a Family Medicine Physician provider in Greenbrae, CA (NPI 1144297516).
Provider details
- NPI number
- 1144297516
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 292453 (MA)
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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
154 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 108 | $129 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 29 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 17 | $96 |
Typical Medicare-allowed amounts for these services range $9–$129 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 54 | 26 |
| Lisinopril | 40 | 20 |
| Amlodipine Besylate | 35 | 17 |
| Levothyroxine Sodium | 25 | 12 |
| Oxycodone Hcl | 23 | — |
| Hydrochlorothiazide | 22 | 12 |
| Fluticasone Propionate | 19 |
Practice location
Mailing address
Additional practice locations (1)
- 50 Staniford St Fl 9Boston, MA 02114-2506Phone: (617) 724-6610Fax: (603) 929-1196
Registry dates
- Enumerated
- 2006-03-03
- Last updated
- 2026-05-06
- Certified
- 2026-05-06
Frequently asked questions
- What is Marissa Fernandez Kiemele's NPI number?
- Marissa Fernandez Kiemele's National Provider Identifier (NPI) is 1144297516, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Fernandez Kiemele's specialty?
- Marissa Fernandez Kiemele is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marissa Fernandez Kiemele located?
- Marissa Fernandez Kiemele's practice location on file with NPPES is 900 S Eliseo Dr Ste 201, Greenbrae, CA 94904-2153.
- What is Marissa Fernandez Kiemele's phone number?
- The practice phone number listed in the NPPES registry for Marissa Fernandez Kiemele is (415) 461-1780.
- Does Marissa Fernandez Kiemele accept Medicare?
- Marissa Fernandez Kiemele is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Fernandez Kiemele's NPI active?
- Yes — Marissa Fernandez Kiemele's NPI (1144297516) is active in the NPPES registry as of the last update on 2026-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.