Elizabeth Kirstein, PA
NPI 1689634842 · Physician Assistant · Waltham, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Kirstein, PA is a Physician Assistant provider in Waltham, MA (NPI 1689634842).
Provider details
- NPI number
- 1689634842
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA2116 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
771 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 | 191 | $119 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 116 | $154 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 94 | $50 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 76 | $94 |
| Detection Test By Nucleic Acid for Strep (streptococcus, Group A), Amplified Probe Technique87651 | 59 | $34 |
| Automated Urinalysis Test81003 | 49 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 46 | 45 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 33 | 32 |
| Prednisone | 22 | 22 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 21 | 20 |
| Cefpodoxime Proxetil | 19 | 19 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 19 | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-23
- Last updated
- 2015-05-01
Frequently asked questions
- What is Elizabeth Kirstein's NPI number?
- Elizabeth Kirstein's National Provider Identifier (NPI) is 1689634842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Kirstein's specialty?
- Elizabeth Kirstein is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Elizabeth Kirstein located?
- Elizabeth Kirstein's practice location on file with NPPES is 1030 Main St, Waltham, MA 02451-7447.
- What is Elizabeth Kirstein's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Kirstein is (781) 894-6900.
- Does Elizabeth Kirstein accept Medicare?
- Elizabeth Kirstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Kirstein's NPI active?
- Yes — Elizabeth Kirstein's NPI (1689634842) is active in the NPPES registry as of the last update on 2015-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.