Martha Blum, MD
NPI 1427250752 · Infectious Disease Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Martha Blum, MD is a Infectious Disease Physician provider in Monterey, CA (NPI 1427250752).
Provider details
- NPI number
- 1427250752
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A87632 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 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
927 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 363 | $80 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 197 | $177 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 140 | $121 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 76 | $133 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 74 | $136 |
| 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Ceftriaxone Sodiumbrand: Ceftriaxone | 38 |
| Ampicillin Sodium | 31 |
| Vancomycin Hcl | 29 |
| Doxycycline Hyclate | 26 |
| Cefuroxime Axetilbrand: Cefuroxime | 25 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 24 |
| Daptomycin | 20 |
| Cefazolin Sodium | 13 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-31
- Last updated
- 2018-05-21
Frequently asked questions
- What is Martha Blum's NPI number?
- Martha Blum's National Provider Identifier (NPI) is 1427250752, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martha Blum's specialty?
- Martha Blum is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Martha Blum located?
- Martha Blum's practice location on file with NPPES is 2 Upper Ragsdale Dr Bldg a, Monterey, CA 93940-5736.
- What is Martha Blum's phone number?
- The practice phone number listed in the NPPES registry for Martha Blum is (831) 330-3040.
- Does Martha Blum accept Medicare?
- Martha Blum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Martha Blum's NPI active?
- Yes — Martha Blum's NPI (1427250752) is active in the NPPES registry as of the last update on 2018-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.