Virginia Tjan, M.D.
NPI 1104824630 · Hematology & Oncology Physician · Montrose, CO
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Virginia Tjan, M.D. is a Hematology & Oncology Physician provider in Montrose, CO (NPI 1104824630).
Provider details
- NPI number
- 1104824630
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036026 (CT)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
989 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 399 | $121 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 246 | $85 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 74 | $13 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 68 | $169 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 65 | $91 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 103 | 29 |
| Levothyroxine Sodium | 41 | 12 |
| Ondansetron Hcl | 41 | 28 |
| Lenalidomidebrand: Revlimid | 40 | — |
| Prochlorperazine Maleate | 39 | 29 |
| Omeprazole | 33 | 13 |
| Prednisone | 29 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$891 across 44 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 (1)
- 95 S Pagosa BlvdPagosa Springs, CO 81147-8329Phone: (970) 507-4000Fax: (970) 731-1988
Registry dates
- Enumerated
- 2005-07-08
- Last updated
- 2020-09-24
- Certified
- 2020-09-24
Frequently asked questions
- What is Virginia Tjan's NPI number?
- Virginia Tjan's National Provider Identifier (NPI) is 1104824630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Virginia Tjan's specialty?
- Virginia Tjan is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Virginia Tjan located?
- Virginia Tjan's practice location on file with NPPES is 600 S 5th St, Montrose, CO 81401-5711.
- What is Virginia Tjan's phone number?
- The practice phone number listed in the NPPES registry for Virginia Tjan is (970) 497-8001.
- Does Virginia Tjan accept Medicare?
- Virginia Tjan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Virginia Tjan's NPI active?
- Yes — Virginia Tjan's NPI (1104824630) is active in the NPPES registry as of the last update on 2020-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.