Omar Viswanath, M.D.
NPI 1669813994 · Pain Medicine (Anesthesiology) Physician · Phoenix, AZ
Enrolled with Medicare as Practitioner - Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Omar Viswanath, M.D. is a Pain Medicine (Anesthesiology) Physician provider in Phoenix, AZ (NPI 1669813994).
Provider details
- NPI number
- 1669813994
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 271672 (MA)
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
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,362 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 | 757 | $123 |
| Unclassified DrugsJ3490 | 586 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 331 | $87 |
| Insertion of Needle Into Vein (3 Years Or Older)36410 | 163 | $17 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 163 | $60 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Each Additional Hour96366 | 163 | $19 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 109 | 46 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 94 | 54 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 93 | 34 |
| Oxycodone Hcl | 40 | 18 |
| Tizanidine Hcl | 36 | 21 |
| Tramadol Hcl | 23 | 15 |
| Pregabalin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,927 across 49 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 (4)
- 645 E Missouri Ave Ste 300Phoenix, AZ 85012Phone: (602) 262-8900Fax: (602) 262-8890
- 1850 N Central Ave Ste 1600Phoenix, AZ 85004Phone: (602) 262-8900Fax: (602) 262-8890
- 1850 N Central Ave Ste 1600Phoenix, AZ 85004Phone: (602) 262-8900Fax: (602) 262-8890
- 1 Brookline PlaceArnold Warfield Pain CenterBrookline, MA 02445Phone: (617) 278-8000Fax: (617) 278-8065
Registry dates
- Enumerated
- 2013-07-15
- Last updated
- 2024-04-08
- Certified
- 2024-04-08
Frequently asked questions
- What is Omar Viswanath's NPI number?
- Omar Viswanath's National Provider Identifier (NPI) is 1669813994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Omar Viswanath's specialty?
- Omar Viswanath is listed in the NPPES registry with a primary specialty of Pain Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Omar Viswanath located?
- Omar Viswanath's practice location on file with NPPES is 2222 E Highland Ave Ste 110, Phoenix, AZ 85016-4874.
- What is Omar Viswanath's phone number?
- The practice phone number listed in the NPPES registry for Omar Viswanath is (602) 767-0007.
- Does Omar Viswanath accept Medicare?
- Omar Viswanath is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Omar Viswanath's NPI active?
- Yes — Omar Viswanath's NPI (1669813994) is active in the NPPES registry as of the last update on 2024-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.