Tiffany Jen, M.D.
NPI 1649689464 · Internal Medicine Physician · Rancho Mirage, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tiffany Jen, M.D. is a Internal Medicine Physician provider in Rancho Mirage, CA (NPI 1649689464).
Provider details
- NPI number
- 1649689464
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,194 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 | 1,877 | $98 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 244 | $66 |
| Transitional Care Management Services for Problem of High Complexity99496 | 27 | $192 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 25 | $141 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 21 | $8 |
Typical Medicare-allowed amounts for these services range $8–$192 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 150 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 724 | 202 |
| Atorvastatin Calcium | 672 | 204 |
| Losartan Potassium | 387 | 109 |
| Amlodipine Besylate | 354 | 105 |
| Omeprazole | 299 | 95 |
| Lisinopril | 253 | 72 |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-08-06
- Last updated
- 2016-06-14
Frequently asked questions
- What is Tiffany Jen's NPI number?
- Tiffany Jen's National Provider Identifier (NPI) is 1649689464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tiffany Jen's specialty?
- Tiffany Jen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tiffany Jen located?
- Tiffany Jen's practice location on file with NPPES is 39000 Bob Hope Dr, Rancho Mirage, CA 92270-3221.
- What is Tiffany Jen's phone number?
- The practice phone number listed in the NPPES registry for Tiffany Jen is (760) 834-7970.
- Does Tiffany Jen accept Medicare?
- Tiffany Jen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tiffany Jen's NPI active?
- Yes — Tiffany Jen's NPI (1649689464) is active in the NPPES registry as of the last update on 2016-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.